fat-catTW opened a new pull request, #69830:
URL: https://github.com/apache/airflow/pull/69830
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## Why:
Dag processors may need to observe Dag bundle refresh state written by
another processor while reusing an existing SQLAlchemy session. Loading
`DagBundleModel` as an ORM entity can reuse an object already present in the
session identity map, which risks reading stale `last_refreshed` or `version`
values.
## Solution:
Select only the needed bundle state columns instead of loading the full ORM
entity. This returns fresh row values for `last_refreshed` and `version`
without relying on an existing `DagBundleModel` object in the session.
Added a regression test that first reads bundle state in one session,
updates the same row from another session, and verifies the manager observes
the updated values.
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