### Description  Remove all linked repos from admin team.  Then you can see that repo count is 0, but you can see the issue in project Of cause, if you click the issue, you will get 404. ### Gitea Version latest ### Can you reproduce the bug on the Gitea demo site? No ### Log Gist _No response_ ### Screenshots _No response_ ### Git Version _No response_ ### Operating System _No response_ ### How are you running Gitea? build ### Database None