404 on commit page if amended a commit and force pushed

[mlthlschr]

• Gitea version (or commit ref): 1.12.6
• Git version: 2.24.3
• Operating system: Debian 10
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (provide example URL)
  • No
• Log gist:

Description

I just recognized that I had a wrong letter (*) in my commit message (which made my CI fail as it could not parse the message). I amended the commit (git commit --amend) changing the message so it does not include the letter anymore. Then I force pushed it to gitea. Now, if I want to open the commit page of this very commit, it just opens in the 404 page.

The commit I amended was a commit generated by my account in gitea after squashing and merging a PR.

Some hint from the log:

 2020/11/28 16:00:10 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT max( id ) as id FROM `commit_status` WHERE (repo_id = ?) AND (sha = ?) GROUP BY context_hash ORDER BY max( id ) desc LIMIT 10 [27 b32d978e0197e35d16ca29fc288afd44d69d4bdc] - 902.783µs                                               
2020/11/28 16:00:10 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT `id`, `index`, `repo_id`, `state`, `sha`, `target_url`, `description`, `context_hash`, `context`, `creator_id`, `created_unix`, `updated_unix` FROM `commit_status` WHERE `id` IN (?) [1084] - 479.88µs                               
2020/11/28 16:00:11 ...uters/repo/commit.go:257:Diff() [E] GetDiffCommit: ParsePatch: Unexpected line in hunk: AAK/H,EAAI,EAAGG,EAAM4H,EAAU1H,OAAQL,EAAIG   
 [...]
 ,IAAM6D,KAAK7D,GACjBwJ,EAAM1B,IAAMjE,KAAKiE,GAKzB2C,SAAU,SAAUj 

[mlthlschr]

Pulled the latest image from dockerhub after seeing this PR. Works now.