$ git clone -n https://src.fedoraproject.org/rpms/python-django-gravatar2.git /var/lib/mock/f45-build-30358-644/root/chroot_tmpdir/scmroot/python-django-gravatar2
Cloning into '/var/lib/mock/f45-build-30358-644/root/chroot_tmpdir/scmroot/python-django-gravatar2'...
$ git fetch origin db5849b53c5b80aff4163a8642eb8d270416db51:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-django-gravatar2
 * [new ref]         db5849b53c5b80aff4163a8642eb8d270416db51 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at db5849b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild