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d9ad23a188
The Nightly release occasionally exposed a mismatch between the commit
shown on the release page and the downloaded “Source code” archive. Root
cause was non-deterministic `Nightly` tag/release state during publish.
- **Deterministic Nightly tag lifecycle**
- Serialize Nightly workflow runs with a dedicated concurrency group to
prevent overlapping tag/release mutations.
- Replace best-effort cleanup with explicit release-exists checks and
failure-on-cleanup-error behavior.
- Remove orphan `Nightly` tags even when no release exists.
- **Pin release to the exact workflow commit**
- Force-update `Nightly` to `${{ github.sha }}` and push it before
release creation.
- Verify remote tag SHA (including annotated-tag dereference shape)
matches `${{ github.sha }}`.
- Create release with `--verify-tag` so source archives are generated
from the validated tag, not an implicit/stale target.
- **Workflow behavior change (deploy section)**
```yaml
concurrency:
group: nightly-release
cancel-in-progress: false
```
```bash
git tag -f Nightly "${{ github.sha }}"
git push --force origin refs/tags/Nightly
gh release create Nightly --verify-tag ...
```
---------
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
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| CI_MIGRATION.md | ||
| CI_TESTING.md | ||
| copilot-instructions.md | ||
| dependabot.yml | ||
| mcp.json | ||