Pushmirror from gitea to gitea throws error

[TDesjardins]

Description

If you have two repos on gitea and configure one (http://localhost:3000/org/source-repo.git) to have a push mirror on the other (http://localhost:3000/org/dest-repo.git) the first sync will success but the update may be fail:

PushRejected Error: remote: 
remote: error:        
remote: error: branch mirror-head is the default branch and cannot be deleted        
remote: error:        
To http://localhost:3000/org/dest-repo.wiki.git
 ! [remote rejected]   mirror-head (pre-receive hook declined)
 ! [remote rejected]   main -> main (pre-receive hook declined)
error: failed to push some refs to 'http://localhost:3000/org/dest-repo.wiki.git'
 - remote: 
remote: error:        
remote: error: branch mirror-head is the default branch and cannot be deleted        
remote: error:        
To http://localhost:3000/org/dest-repo.wiki.git
 ! [remote rejected]   mirror-head (pre-receive hook declined)
 ! [remote rejected]   main -> main (pre-receive hook declined)
error: failed to push some refs to 'http://localhost:3000/org/dest-repo.wiki.git'
: remote: 
remote: error:        
remote: error: branch mirror-head is the default branch and cannot be deleted        
remote: error:        
To http://localhost:3000/org/dest-repo.wiki.git
 ! [remote rejected]   mirror-head (pre-receive hook declined)
 ! [remote rejected]   main -> main (pre-receive hook declined)
error: failed to push some refs to 'http://localhost:3000/org/dest-repo.wiki.git'

Seems that has something todo with the wiki. There is an existing wiki in the dest-repo but actually the wiki is a gitea specific separate repo, right?

Gitea Version

1.25.3

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?

Self hosted docker

Database

MySQL/MariaDB