Thread:Extension talk:Validator/Extension versions breaks 'git submodule foreach git pull origin REL1 22'/reply

These release tags like e.g. REL1_22 are very often not the best shot when it comes to installing an extension, no matter if we are talking about this extension here or any other extension. They must naturally be a kind of arbitrary. Probably only extensions bundled with MediaWiki are really safe when using this special tag.

I recommend installing this extension and its dependencies with Composer. It's a bit of a habitual change but it saves time and nerves. :)