codeant-ai-for-open-source[bot] commented on PR #38515:
URL: https://github.com/apache/superset/pull/38515#issuecomment-4027018867
## **Sequence Diagram**
The PR removes the explicit clearing of slice_id so matrixified cells
inherit the parent's slice_id and dashboardId. This ensures each cell's API
request includes the dashboard context so the backend permission check can
verify chart membership and return data for embedded dashboards.
```mermaid
sequenceDiagram
participant Renderer
participant MatrixifyGridGenerator
participant Cell as "StatefulChart Cell"
participant API
participant Backend as "Backend (permission check)"
Renderer->>MatrixifyGridGenerator: generateMatrixifyGrid(baseFormData
with slice_id & dashboardId)
MatrixifyGridGenerator->>Cell: create cell with formData (preserve
slice_id & dashboardId)
Cell->>API: Request chart data (formData includes slice_id + dashboardId)
API->>Backend: Validate request (check dashboardId and slice_id for
embedded user)
Backend-->>API: Authorized -> chart data
API-->>Cell: Return chart data
Cell-->>Renderer: Render cell with data
```
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