### Description See the screenshot. Possible options may be `git fetch -u refs/pull/123/head:agit-topic` or `tea pr co --branch 123` with `tea`. ### Gitea Version 1.22.0 ### Can you reproduce the bug on the Gitea demo site? No ### Log Gist _No response_ ### Screenshots  ### Git Version _No response_ ### Operating System _No response_ ### How are you running Gitea? Docker ### Database PostgreSQL