codeant-ai-for-open-source[bot] commented on code in PR #42469:
URL: https://github.com/apache/superset/pull/42469#discussion_r3673650152


##########
superset/versioning/restore.py:
##########
@@ -0,0 +1,264 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""Write-side: restore a versioned entity to an earlier state.
+
+Companion to :mod:`superset.versioning.queries`. The
+``BaseRestoreVersionCommand`` in :mod:`superset.commands.version_restore`
+is the only intended caller; the backward-compat ``VersionDAO`` façade
+in :mod:`superset.daos.version` re-exports ``restore_version``.
+
+Restore semantics are strictly per-entity: a restore rewrites the target
+entity's own fields (and, for datasets, its own columns/metrics — the
+aggregate's internal parts), never the content of other entities. A
+dashboard restore reattaches membership to charts that still exist;
+charts that have been deleted since the snapshot stay deleted and are
+reported as skipped rather than revived or dangling.
+"""
+
+from __future__ import annotations
+
+import logging
+from dataclasses import dataclass, field
+from datetime import datetime
+from typing import Any
+from uuid import UUID
+
+from sqlalchemy_continuum import version_class
+
+from superset.extensions import db
+from superset.versioning.baseline import OPERATION_DELETE
+from superset.versioning.queries import find_active_by_uuid
+from superset.versioning.utils import single_flush_scope
+
+logger = logging.getLogger(__name__)
+
+# A DELETE version row (``OPERATION_DELETE``) is never a valid restore
+# target: Continuum's ``Reverter`` would delete the live entity and report
+# success — the opposite of the non-destructive contract — so the engine
+# treats it as not-found.
+
+
+# Per-model relationships that Continuum's Reverter recurses into during a
+# restore — deliberately limited to the entity's OWN aggregate parts
+# (``TableColumn`` / ``SqlMetric`` on ``SqlaTable``). ``Dashboard`` is NOT
+# given ``slices`` here: recursing into the M2M would run a full child
+# revert on every member chart, overwriting live charts' content with
+# historical values (charts are shared entities with their own restore),
+# and re-creating hard-deleted charts. Dashboard membership is instead
+# reconstructed by :func:`_restore_dashboard_membership`.
+#
+# Unknown models fail closed (``LookupError``) rather than defaulting to a
+# relation-less restore — a silently partial restore is worse than a loud
+# failure (mirrors ``_RAISE_FOR_ACCESS_KWARG`` in ``api_helpers``).
+_RESTORE_RELATIONS: dict[str, list[str]] = {
+    "SqlaTable": ["columns", "metrics"],
+    "Dashboard": [],
+    "Slice": [],
+}
+
+
+@dataclass
+class RestoreResult:
+    """Outcome of a successful restore.
+
+    ``skipped_slice_ids`` is only ever populated for dashboard restores:
+    member charts referenced by the snapshot that no longer exist and were
+    therefore not reattached (they stay deleted — restore never revives
+    entities).
+    """
+
+    entity: Any
+    skipped_slice_ids: list[int] = field(default_factory=list)
+
+
+def restore_version(
+    model_cls: type,
+    entity_uuid: UUID,
+    transaction_id: int,
+    *,
+    entity: Any | None = None,
+) -> RestoreResult | None:
+    """Restore the entity identified by *entity_uuid* to the state captured
+    at *transaction_id* (the stable identifier resolved from a
+    ``version_uuid`` by :func:`superset.versioning.queries.resolve_version`).
+
+    Returns a :class:`RestoreResult` wrapping the live entity, or ``None``
+    when the UUID does not match an active entity, no version row exists at
+    *transaction_id*, or the target row is a DELETE — callers should
+    translate all three to a 404.
+
+    Pass *entity* to skip the ``find_active_by_uuid`` lookup when the
+    caller has already loaded the row (the command's ``validate()`` has).
+
+    Uses SQLAlchemy-Continuum's native ``version_obj.revert(relations=...)``
+    and delegates commit to the caller (expected to be a command decorated
+    with ``@transaction()``). The ``relations`` list depends on the model
+    type and is looked up in :data:`_RESTORE_RELATIONS`; unknown models
+    raise ``LookupError`` rather than silently restoring without children.
+
+    Within the same flush, ``changed_on`` / ``changed_by_fk`` are
+    re-stamped with the current time and the restoring user's id so the
+    new version row produced by the restoring commit reflects who clicked
+    Restore, not the original author. ``created_on`` / ``created_by_fk``
+    are left alone.
+    """
+    if entity is None:
+        entity = find_active_by_uuid(model_cls, entity_uuid)
+        if entity is None:
+            return None
+    elif entity.uuid != entity_uuid:
+        # The caller-supplied shortcut must describe the same row as
+        # *entity_uuid*: everything downstream (the version lookup, the
+        # audit stamp, the caller's logging) trusts them to agree. Fail
+        # loudly rather than restore one entity while reporting another.
+        raise ValueError(
+            f"entity.uuid ({entity.uuid!r}) does not match entity_uuid "
+            f"({entity_uuid!r}); the preloaded entity must be the one "
+            "identified by entity_uuid"
+        )
+
+    ver_cls = version_class(model_cls)
+    target_version = (
+        db.session.query(ver_cls)
+        .filter(
+            ver_cls.id == entity.id,
+            ver_cls.transaction_id == transaction_id,
+        )
+        .one_or_none()
+    )
+    if target_version is None or target_version.operation_type == 
OPERATION_DELETE:
+        return None
+
+    relations = _RESTORE_RELATIONS.get(model_cls.__name__)
+    if relations is None:
+        raise LookupError(
+            f"No restore relations registered for {model_cls.__name__!r}; "
+            "register the model in _RESTORE_RELATIONS before wiring a "
+            "restore command for it."
+        )
+
+    # Run the whole revert — including membership reconstruction and audit
+    # stamping — inside a single flush scope so SQLAlchemy-Continuum's
+    # ``Reverter`` can iterate relations without tripping its autoflush
+    # race, and so the change-records listener sees the complete state in
+    # one ``after_flush`` pass. See ``single_flush_scope`` for the full
+    # rationale.
+    skipped_slice_ids: list[int] = []
+    try:
+        with single_flush_scope(db.session):
+            target_version.revert(relations=relations)
+            if model_cls.__name__ == "Dashboard":
+                skipped_slice_ids = _restore_dashboard_membership(
+                    entity, transaction_id
+                )
+            _stamp_audit_fields_for_restore(entity)

Review Comment:
   **Suggestion:** Restoring a version whose versioned fields and relationships 
already match the live entity produces no dirty versioned columns: `changed_on` 
and `changed_by_fk` are excluded from Continuum versioning, so the flush can 
create no new version row. The endpoint still returns success even though the 
required append-only restore record and its reversible history entry were not 
created. Force an explicitly versioned restore marker or otherwise ensure a new 
version transaction is emitted for no-op restores. [incomplete implementation]
   
   <details>
   <summary><b>Severity Level:</b> Critical 🚨</summary>
   
   ```mdx
   - ❌ No-op restore may not append reversible history.
   - ⚠️ Restore activity headline can lack a version transaction.
   - ⚠️ Version-history counts become inconsistent.
   ```
   </details>
   
   [![Fix in 
Cursor](https://new-codeant-butcket.s3.us-west-1.amazonaws.com/badges/fix-in-cursor-flat.svg)](https://app.codeant.ai/fix-in-ide?tool=cursor&prompt_id=a33cd875a0e44aaca10124685909024a&service=github&base_url=https%3A%2F%2Fgithub.com&org=apache&repo=apache%2Fsuperset)
 [![Fix in VSCode 
Claude](https://new-codeant-butcket.s3.us-west-1.amazonaws.com/badges/fix-in-vscode-claude-flat.svg)](https://app.codeant.ai/fix-in-ide?tool=vscode-claude&prompt_id=a33cd875a0e44aaca10124685909024a&service=github&base_url=https%3A%2F%2Fgithub.com&org=apache&repo=apache%2Fsuperset)
   
   *(Use Cmd/Ctrl + Click for best experience)*
   <details>
   <summary><b>Prompt for AI Agent 🤖 </b></summary>
   
   ```mdx
   This is a comment left during a code review.
   
   **Path:** superset/versioning/restore.py
   **Line:** 162:168
   **Comment:**
        *Incomplete Implementation: Restoring a version whose versioned fields 
and relationships already match the live entity produces no dirty versioned 
columns: `changed_on` and `changed_by_fk` are excluded from Continuum 
versioning, so the flush can create no new version row. The endpoint still 
returns success even though the required append-only restore record and its 
reversible history entry were not created. Force an explicitly versioned 
restore marker or otherwise ensure a new version transaction is emitted for 
no-op restores.
   
   Validate the correctness of the flagged issue. If correct, How can I resolve 
this? If you propose a fix, implement it and please make it concise.
   Once fix is implemented, also check other comments on the same PR, and ask 
user if the user wants to fix the rest of the comments as well. if said yes, 
then fetch all the comments validate the correctness and implement a minimal fix
   ```
   </details>
   <a 
href='https://app.codeant.ai/feedback?pr_url=https%3A%2F%2Fgithub.com%2Fapache%2Fsuperset%2Fpull%2F42469&comment_hash=2eee6b5221e854ea3ca3af5aa6d9fbb24584568468a09b3625599c3c3ce80604&reaction=like'>👍</a>
 | <a 
href='https://app.codeant.ai/feedback?pr_url=https%3A%2F%2Fgithub.com%2Fapache%2Fsuperset%2Fpull%2F42469&comment_hash=2eee6b5221e854ea3ca3af5aa6d9fbb24584568468a09b3625599c3c3ce80604&reaction=dislike'>👎</a>



##########
superset/versioning/restore.py:
##########
@@ -0,0 +1,264 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""Write-side: restore a versioned entity to an earlier state.
+
+Companion to :mod:`superset.versioning.queries`. The
+``BaseRestoreVersionCommand`` in :mod:`superset.commands.version_restore`
+is the only intended caller; the backward-compat ``VersionDAO`` façade
+in :mod:`superset.daos.version` re-exports ``restore_version``.
+
+Restore semantics are strictly per-entity: a restore rewrites the target
+entity's own fields (and, for datasets, its own columns/metrics — the
+aggregate's internal parts), never the content of other entities. A
+dashboard restore reattaches membership to charts that still exist;
+charts that have been deleted since the snapshot stay deleted and are
+reported as skipped rather than revived or dangling.
+"""
+
+from __future__ import annotations
+
+import logging
+from dataclasses import dataclass, field
+from datetime import datetime
+from typing import Any
+from uuid import UUID
+
+from sqlalchemy_continuum import version_class
+
+from superset.extensions import db
+from superset.versioning.baseline import OPERATION_DELETE
+from superset.versioning.queries import find_active_by_uuid
+from superset.versioning.utils import single_flush_scope
+
+logger = logging.getLogger(__name__)
+
+# A DELETE version row (``OPERATION_DELETE``) is never a valid restore
+# target: Continuum's ``Reverter`` would delete the live entity and report
+# success — the opposite of the non-destructive contract — so the engine
+# treats it as not-found.
+
+
+# Per-model relationships that Continuum's Reverter recurses into during a
+# restore — deliberately limited to the entity's OWN aggregate parts
+# (``TableColumn`` / ``SqlMetric`` on ``SqlaTable``). ``Dashboard`` is NOT
+# given ``slices`` here: recursing into the M2M would run a full child
+# revert on every member chart, overwriting live charts' content with
+# historical values (charts are shared entities with their own restore),
+# and re-creating hard-deleted charts. Dashboard membership is instead
+# reconstructed by :func:`_restore_dashboard_membership`.
+#
+# Unknown models fail closed (``LookupError``) rather than defaulting to a
+# relation-less restore — a silently partial restore is worse than a loud
+# failure (mirrors ``_RAISE_FOR_ACCESS_KWARG`` in ``api_helpers``).
+_RESTORE_RELATIONS: dict[str, list[str]] = {
+    "SqlaTable": ["columns", "metrics"],
+    "Dashboard": [],
+    "Slice": [],
+}
+
+
+@dataclass
+class RestoreResult:
+    """Outcome of a successful restore.
+
+    ``skipped_slice_ids`` is only ever populated for dashboard restores:
+    member charts referenced by the snapshot that no longer exist and were
+    therefore not reattached (they stay deleted — restore never revives
+    entities).
+    """
+
+    entity: Any
+    skipped_slice_ids: list[int] = field(default_factory=list)
+
+
+def restore_version(
+    model_cls: type,
+    entity_uuid: UUID,
+    transaction_id: int,
+    *,
+    entity: Any | None = None,
+) -> RestoreResult | None:
+    """Restore the entity identified by *entity_uuid* to the state captured
+    at *transaction_id* (the stable identifier resolved from a
+    ``version_uuid`` by :func:`superset.versioning.queries.resolve_version`).
+
+    Returns a :class:`RestoreResult` wrapping the live entity, or ``None``
+    when the UUID does not match an active entity, no version row exists at
+    *transaction_id*, or the target row is a DELETE — callers should
+    translate all three to a 404.
+
+    Pass *entity* to skip the ``find_active_by_uuid`` lookup when the
+    caller has already loaded the row (the command's ``validate()`` has).
+
+    Uses SQLAlchemy-Continuum's native ``version_obj.revert(relations=...)``
+    and delegates commit to the caller (expected to be a command decorated
+    with ``@transaction()``). The ``relations`` list depends on the model
+    type and is looked up in :data:`_RESTORE_RELATIONS`; unknown models
+    raise ``LookupError`` rather than silently restoring without children.
+
+    Within the same flush, ``changed_on`` / ``changed_by_fk`` are
+    re-stamped with the current time and the restoring user's id so the
+    new version row produced by the restoring commit reflects who clicked
+    Restore, not the original author. ``created_on`` / ``created_by_fk``
+    are left alone.
+    """
+    if entity is None:
+        entity = find_active_by_uuid(model_cls, entity_uuid)
+        if entity is None:
+            return None

Review Comment:
   **Suggestion:** The restore engine treats any row returned by 
`find_active_by_uuid` as an active entity, but that helper does not filter 
`deleted_at`. Consequently, a restore request for a soft-deleted chart, 
dashboard, or dataset can mutate the deleted row and create a version instead 
of returning not-found; the lookup must explicitly reject soft-deleted 
entities. [stale reference]
   
   <details>
   <summary><b>Severity Level:</b> Critical 🚨</summary>
   
   ```mdx
   - ❌ Version restore can modify trashed entities.
   - ⚠️ Deleted rows may receive new history entries.
   - ⚠️ Restore endpoint violates inactive-entity behavior.
   ```
   </details>
   
   [![Fix in 
Cursor](https://new-codeant-butcket.s3.us-west-1.amazonaws.com/badges/fix-in-cursor-flat.svg)](https://app.codeant.ai/fix-in-ide?tool=cursor&prompt_id=efb7feb61bcf44e69ac313bf337dc692&service=github&base_url=https%3A%2F%2Fgithub.com&org=apache&repo=apache%2Fsuperset)
 [![Fix in VSCode 
Claude](https://new-codeant-butcket.s3.us-west-1.amazonaws.com/badges/fix-in-vscode-claude-flat.svg)](https://app.codeant.ai/fix-in-ide?tool=vscode-claude&prompt_id=efb7feb61bcf44e69ac313bf337dc692&service=github&base_url=https%3A%2F%2Fgithub.com&org=apache&repo=apache%2Fsuperset)
   
   *(Use Cmd/Ctrl + Click for best experience)*
   <details>
   <summary><b>Prompt for AI Agent 🤖 </b></summary>
   
   ```mdx
   This is a comment left during a code review.
   
   **Path:** superset/versioning/restore.py
   **Line:** 119:122
   **Comment:**
        *Stale Reference: The restore engine treats any row returned by 
`find_active_by_uuid` as an active entity, but that helper does not filter 
`deleted_at`. Consequently, a restore request for a soft-deleted chart, 
dashboard, or dataset can mutate the deleted row and create a version instead 
of returning not-found; the lookup must explicitly reject soft-deleted entities.
   
   Validate the correctness of the flagged issue. If correct, How can I resolve 
this? If you propose a fix, implement it and please make it concise.
   Once fix is implemented, also check other comments on the same PR, and ask 
user if the user wants to fix the rest of the comments as well. if said yes, 
then fetch all the comments validate the correctness and implement a minimal fix
   ```
   </details>
   <a 
href='https://app.codeant.ai/feedback?pr_url=https%3A%2F%2Fgithub.com%2Fapache%2Fsuperset%2Fpull%2F42469&comment_hash=dad450642f08370c6573de8b1edc94d7763eb792f74c8fe4ebe58b5f9d009b32&reaction=like'>👍</a>
 | <a 
href='https://app.codeant.ai/feedback?pr_url=https%3A%2F%2Fgithub.com%2Fapache%2Fsuperset%2Fpull%2F42469&comment_hash=dad450642f08370c6573de8b1edc94d7763eb792f74c8fe4ebe58b5f9d009b32&reaction=dislike'>👎</a>



##########
superset/versioning/restore.py:
##########
@@ -0,0 +1,264 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""Write-side: restore a versioned entity to an earlier state.
+
+Companion to :mod:`superset.versioning.queries`. The
+``BaseRestoreVersionCommand`` in :mod:`superset.commands.version_restore`
+is the only intended caller; the backward-compat ``VersionDAO`` façade
+in :mod:`superset.daos.version` re-exports ``restore_version``.
+
+Restore semantics are strictly per-entity: a restore rewrites the target
+entity's own fields (and, for datasets, its own columns/metrics — the
+aggregate's internal parts), never the content of other entities. A
+dashboard restore reattaches membership to charts that still exist;
+charts that have been deleted since the snapshot stay deleted and are
+reported as skipped rather than revived or dangling.
+"""
+
+from __future__ import annotations
+
+import logging
+from dataclasses import dataclass, field
+from datetime import datetime
+from typing import Any
+from uuid import UUID
+
+from sqlalchemy_continuum import version_class
+
+from superset.extensions import db
+from superset.versioning.baseline import OPERATION_DELETE
+from superset.versioning.queries import find_active_by_uuid
+from superset.versioning.utils import single_flush_scope
+
+logger = logging.getLogger(__name__)
+
+# A DELETE version row (``OPERATION_DELETE``) is never a valid restore
+# target: Continuum's ``Reverter`` would delete the live entity and report
+# success — the opposite of the non-destructive contract — so the engine
+# treats it as not-found.
+
+
+# Per-model relationships that Continuum's Reverter recurses into during a
+# restore — deliberately limited to the entity's OWN aggregate parts
+# (``TableColumn`` / ``SqlMetric`` on ``SqlaTable``). ``Dashboard`` is NOT
+# given ``slices`` here: recursing into the M2M would run a full child
+# revert on every member chart, overwriting live charts' content with
+# historical values (charts are shared entities with their own restore),
+# and re-creating hard-deleted charts. Dashboard membership is instead
+# reconstructed by :func:`_restore_dashboard_membership`.
+#
+# Unknown models fail closed (``LookupError``) rather than defaulting to a
+# relation-less restore — a silently partial restore is worse than a loud
+# failure (mirrors ``_RAISE_FOR_ACCESS_KWARG`` in ``api_helpers``).
+_RESTORE_RELATIONS: dict[str, list[str]] = {
+    "SqlaTable": ["columns", "metrics"],
+    "Dashboard": [],
+    "Slice": [],
+}
+
+
+@dataclass
+class RestoreResult:
+    """Outcome of a successful restore.
+
+    ``skipped_slice_ids`` is only ever populated for dashboard restores:
+    member charts referenced by the snapshot that no longer exist and were
+    therefore not reattached (they stay deleted — restore never revives
+    entities).
+    """
+
+    entity: Any
+    skipped_slice_ids: list[int] = field(default_factory=list)
+
+
+def restore_version(
+    model_cls: type,
+    entity_uuid: UUID,
+    transaction_id: int,
+    *,
+    entity: Any | None = None,
+) -> RestoreResult | None:
+    """Restore the entity identified by *entity_uuid* to the state captured
+    at *transaction_id* (the stable identifier resolved from a
+    ``version_uuid`` by :func:`superset.versioning.queries.resolve_version`).
+
+    Returns a :class:`RestoreResult` wrapping the live entity, or ``None``
+    when the UUID does not match an active entity, no version row exists at
+    *transaction_id*, or the target row is a DELETE — callers should
+    translate all three to a 404.
+
+    Pass *entity* to skip the ``find_active_by_uuid`` lookup when the
+    caller has already loaded the row (the command's ``validate()`` has).
+
+    Uses SQLAlchemy-Continuum's native ``version_obj.revert(relations=...)``
+    and delegates commit to the caller (expected to be a command decorated
+    with ``@transaction()``). The ``relations`` list depends on the model
+    type and is looked up in :data:`_RESTORE_RELATIONS`; unknown models
+    raise ``LookupError`` rather than silently restoring without children.
+
+    Within the same flush, ``changed_on`` / ``changed_by_fk`` are
+    re-stamped with the current time and the restoring user's id so the
+    new version row produced by the restoring commit reflects who clicked
+    Restore, not the original author. ``created_on`` / ``created_by_fk``
+    are left alone.
+    """
+    if entity is None:
+        entity = find_active_by_uuid(model_cls, entity_uuid)
+        if entity is None:
+            return None
+    elif entity.uuid != entity_uuid:
+        # The caller-supplied shortcut must describe the same row as
+        # *entity_uuid*: everything downstream (the version lookup, the
+        # audit stamp, the caller's logging) trusts them to agree. Fail
+        # loudly rather than restore one entity while reporting another.
+        raise ValueError(
+            f"entity.uuid ({entity.uuid!r}) does not match entity_uuid "
+            f"({entity_uuid!r}); the preloaded entity must be the one "
+            "identified by entity_uuid"
+        )
+
+    ver_cls = version_class(model_cls)
+    target_version = (
+        db.session.query(ver_cls)
+        .filter(
+            ver_cls.id == entity.id,
+            ver_cls.transaction_id == transaction_id,
+        )
+        .one_or_none()
+    )
+    if target_version is None or target_version.operation_type == 
OPERATION_DELETE:
+        return None
+
+    relations = _RESTORE_RELATIONS.get(model_cls.__name__)
+    if relations is None:
+        raise LookupError(
+            f"No restore relations registered for {model_cls.__name__!r}; "
+            "register the model in _RESTORE_RELATIONS before wiring a "
+            "restore command for it."
+        )
+
+    # Run the whole revert — including membership reconstruction and audit
+    # stamping — inside a single flush scope so SQLAlchemy-Continuum's
+    # ``Reverter`` can iterate relations without tripping its autoflush
+    # race, and so the change-records listener sees the complete state in
+    # one ``after_flush`` pass. See ``single_flush_scope`` for the full
+    # rationale.
+    skipped_slice_ids: list[int] = []
+    try:
+        with single_flush_scope(db.session):
+            target_version.revert(relations=relations)
+            if model_cls.__name__ == "Dashboard":
+                skipped_slice_ids = _restore_dashboard_membership(
+                    entity, transaction_id
+                )
+            _stamp_audit_fields_for_restore(entity)
+    except Exception:
+        logger.exception(
+            "Continuum revert() failed for %s id=%s tx=%s relations=%s",
+            model_cls.__name__,
+            entity.id,
+            transaction_id,
+            relations,
+        )
+        raise
+
+    logger.info(
+        "versioning: restored %s id=%s uuid=%s to tx=%s (skipped_slices=%s)",
+        model_cls.__name__,
+        entity.id,
+        entity_uuid,
+        transaction_id,
+        skipped_slice_ids or None,
+    )
+    return RestoreResult(entity=entity, skipped_slice_ids=skipped_slice_ids)
+
+
+def _restore_dashboard_membership(dashboard: Any, transaction_id: int) -> 
list[int]:
+    """Reset *dashboard*'s chart membership to what it was at
+    *transaction_id*, reattaching only charts that still exist.
+
+    Reads the validity-windowed ``dashboard_slices_version`` shadow
+    (Continuum's auto-generated M2M table): a slice was a member at tx T
+    iff a non-DELETE row has ``transaction_id <= T`` and an open or
+    later-closing validity window.
+
+    Returns the ids of snapshot members that no longer exist and were
+    skipped. Live charts' content is never touched — restoring a chart's
+    content is the chart's own restore endpoint's job.
+    """
+    # pylint: disable=import-outside-toplevel
+    # Local imports: models.slice transitively imports models.core, which
+    # needs the initialised app — module-top import would recreate the
+    # bootstrap cycle documented in changes/listener.py; shadow_queries is
+    # imported lazily for the same reason (see queries.get_version).
+    from superset.models.slice import Slice
+    from superset.versioning.changes import shadow_rows_valid_at
+
+    ver_cls = version_class(type(dashboard))
+    m2m_tbl = ver_cls.__table__.metadata.tables.get("dashboard_slices_version")
+    if m2m_tbl is None:  # pragma: no cover — shadow tables always exist here
+        return []
+
+    # shadow_rows_valid_at owns the validity-window semantics (open or
+    # later-closing window, non-DELETE) — the same predicate the version
+    # snapshot's column/metric reconstruction uses.
+    member_ids = sorted(
+        {
+            row["slice_id"]
+            for row in shadow_rows_valid_at(
+                db.session,
+                m2m_tbl,
+                "dashboard_id",
+                dashboard.id,
+                transaction_id,
+            )
+            if row["slice_id"] is not None
+        }
+    )
+    if not member_ids:
+        dashboard.slices = []
+        return []
+
+    live_slices = 
db.session.query(Slice).filter(Slice.id.in_(member_ids)).all()

Review Comment:
   **Suggestion:** The membership query loads soft-deleted charts because it 
filters only by `Slice.id`. A chart whose `deleted_at` is set is therefore 
included in `dashboard.slices` and reattached during restore, contradicting the 
contract that deleted charts remain deleted and should be reported as skipped. 
Restrict this query to live charts by excluding rows with a non-null 
`deleted_at`. [logic error]
   
   <details>
   <summary><b>Severity Level:</b> Major ⚠️</summary>
   
   ```mdx
   - ❌ Dashboard restore can reattach trashed charts.
   - ⚠️ Deleted-chart skip reporting becomes inaccurate.
   - ⚠️ Dashboard membership may expose deleted content.
   ```
   </details>
   
   [![Fix in 
Cursor](https://new-codeant-butcket.s3.us-west-1.amazonaws.com/badges/fix-in-cursor-flat.svg)](https://app.codeant.ai/fix-in-ide?tool=cursor&prompt_id=f5d949dcbc2b45cb93d53b79352ae9b6&service=github&base_url=https%3A%2F%2Fgithub.com&org=apache&repo=apache%2Fsuperset)
 [![Fix in VSCode 
Claude](https://new-codeant-butcket.s3.us-west-1.amazonaws.com/badges/fix-in-vscode-claude-flat.svg)](https://app.codeant.ai/fix-in-ide?tool=vscode-claude&prompt_id=f5d949dcbc2b45cb93d53b79352ae9b6&service=github&base_url=https%3A%2F%2Fgithub.com&org=apache&repo=apache%2Fsuperset)
   
   *(Use Cmd/Ctrl + Click for best experience)*
   <details>
   <summary><b>Prompt for AI Agent 🤖 </b></summary>
   
   ```mdx
   This is a comment left during a code review.
   
   **Path:** superset/versioning/restore.py
   **Line:** 236:236
   **Comment:**
        *Logic Error: The membership query loads soft-deleted charts because it 
filters only by `Slice.id`. A chart whose `deleted_at` is set is therefore 
included in `dashboard.slices` and reattached during restore, contradicting the 
contract that deleted charts remain deleted and should be reported as skipped. 
Restrict this query to live charts by excluding rows with a non-null 
`deleted_at`.
   
   Validate the correctness of the flagged issue. If correct, How can I resolve 
this? If you propose a fix, implement it and please make it concise.
   Once fix is implemented, also check other comments on the same PR, and ask 
user if the user wants to fix the rest of the comments as well. if said yes, 
then fetch all the comments validate the correctness and implement a minimal fix
   ```
   </details>
   <a 
href='https://app.codeant.ai/feedback?pr_url=https%3A%2F%2Fgithub.com%2Fapache%2Fsuperset%2Fpull%2F42469&comment_hash=b28ab9c88a015c29178e805a6a8157b1c9862c99ced0444522f71fe6ba4ee4ed&reaction=like'>👍</a>
 | <a 
href='https://app.codeant.ai/feedback?pr_url=https%3A%2F%2Fgithub.com%2Fapache%2Fsuperset%2Fpull%2F42469&comment_hash=b28ab9c88a015c29178e805a6a8157b1c9862c99ced0444522f71fe6ba4ee4ed&reaction=dislike'>👎</a>



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