rabumaabraham opened a new pull request, #40683:
URL: https://github.com/apache/superset/pull/40683
### SUMMARY
This PR fixes a bug where the "View as Table" modal displays raw JSON
strings (e.g., `{"label": "..."}`) and raw suffixes (e.g., `__contribution`) in
column headers instead of clean, human-readable labels.
This builds directly on top of the previous autonomous attempt to resolve
Issue #17, ensuring data row values populate correctly without breaking AG Grid
field matching while fully cleaning up the header names.
### BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF
#### Before (Raw JSON)
<img width="1918" height="1012" alt="34"
src="https://github.com/user-attachments/assets/4e06d21b-e280-4568-8f2e-1b0b6da5e528";
/>
#### After (Clean Headers)
<img width="1907" height="1042" alt="45"
src="https://github.com/user-attachments/assets/9160c480-7b4b-4804-bc39-51711abfecc4";
/>
### TESTING INSTRUCTIONS
1. Open a dashboard containing a Pie Chart that uses custom metric labels.
2. Click the three dots (`...`) on the chart and select **View as table**.
3. Verify that the table headers show clean names and that the row data
populates numbers correctly instead of saying `undefined`.
### ADDITIONAL INFORMATION
- [x] Has associated issue: Fixes #17
- [ ] Required feature flags:
- [x] Changes UI
- [ ] Includes DB Migration (follow approval process in
[SIP-59](https://github.com/apache/superset/issues/13351))
- [ ] Migration is atomic, supports rollback & is backwards-compatible
- [ ] Confirm DB migration upgrade and downgrade tested
- [ ] Runtime estimates and downtime expectations provided
- [ ] Introduces new feature or API
- [ ] Removes existing feature or API
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