wiki default branch name is "master" and is not configurable

[na-Itms]

Description

Hello,
When creating a new repository and creating its wiki from the web interface, the wiki repository's default branch is "master". This cannot be seen on the web interface, but it appears when cloning the wiki.

This is reproducible on the test instance, see for instance https://try.gitea.io/na-Itms/wikibranchname.wiki.git

This is surprising and inconsistent with git's defaults, as well as gitea's own default for repository.DEFAULT_BRANCH (#19354).

I assume the default should be main, and this should be configurable either with a configuration key (repository.DEFAULT_WIKI_BRANCH maybe?), or in the repository's settings on the web interface.

Gitea Version

1.22.0+dev-511-g657b23d63

Can you reproduce the bug on the Gitea demo site?

Yes

Log Gist

No response

Screenshots

No response

Git Version

No response

Operating System

No response

How are you running Gitea?

I am using try.gitea.io to demonstrate the issue. I am personally running the latest release of gitea on Ubuntu, installed from binary.

Database

MySQL/MariaDB