not sure what your "oh wait" is about... they apparently take bug reports over email. from https://git-scm.com/community:
> Questions or comments for the Git community can be sent to the mailing list by using the email address git@vger.kernel.org. Bug reports for git should be sent to this mailing list.
For the vast majority of users git is bug free. If there is an issue with git nowadays its highly specific and well suited to be handled in a mailing list.
This also makes it easier for the git devs to focus on actual development and not explain git to people unwilling to use google (the same people are to lazy to use email).
