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gitea/tests
Eyüp Can Akman cfc9f4c685 fix(pull): sign the commit when updating a branch by merge (#38441) (#38499)
Updating a branch by merge produced an unsigned commit even when merges
are configured to be signed. Update by rebase was unaffected.

`Update()` builds a fake reverse PR to switch head and base, and it has
no `Index`, so `pr.GetGitHeadRefName()` resolves `refs/pull/0/head`.
Since #36186 `SignMerge` looks that ref up in the base repository
instead of the temporary merge repo. That lookup fails. The caller
dropped the error, so `sign` stayed false.

Sync fork goes through the same fake-PR path.

Pass both sides of the merge to `SignMerge` as refs and evaluate them in
the temp repo, where `base` and `tracking` always exist.

Tests cover a signed and an unsigned update by merge.

Fixes #38066
Backport #38441
2026-07-17 11:05:05 +00:00
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