Default branch can be missing on releases tab

[delvh]

• Gitea version (or commit ref): 1.16.0+dev-209-g9fa6bdb64
• Can you reproduce the bug at https://try.gitea.io: not sure, was noticed on https://gitea.com/xorm/xorm/releases

Description

Apparently, the default branch can be missing on the release page of projects.
This seems to be a backend issue because the generated link is https://gitea.com/xorm/xorm/compare/v1.2.2... as well and hence missing the branch to compare with.
When I disable JavaScript, the result is still the same.

Screenshots

[a1012112796]

maybe Target of these Release is missing in db. But don't know why.
hasen't found this bug on the latest commit (1.16.0+dev-239-g04b233e94)

[wxiaoguang]

Related to #24470 and #24148

I think this issue has been fixed.