codeant-ai-for-open-source[bot] commented on PR #38120:
URL: https://github.com/apache/superset/pull/38120#issuecomment-4036004335
## **Sequence Diagram**
This PR fixes cross-filtering for multi-metric stacked charts so that
clicking a segment emits filters based on groupby dimension values (with metric
fields skipped) and updates dependent charts correctly.
```mermaid
sequenceDiagram
participant User
participant EchartsChart
participant CrossFilterHandler
participant DashboardFilters
participant DependentChart
User->>EchartsChart: Click stacked bar segment
EchartsChart->>CrossFilterHandler: Handle click with labelMap and groupby
CrossFilterHandler->>CrossFilterHandler: Skip metric labels and derive
dimension values
CrossFilterHandler->>DashboardFilters: setDataMask with dimension filters
DashboardFilters->>DependentChart: Apply filters and refresh
DependentChart-->>User: Updated data for selected dimension
```
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