$ git clone -n https://src.fedoraproject.org/rpms/python-musicbrainzngs.git /var/lib/mock/f45-build-31606-654/root/chroot_tmpdir/scmroot/python-musicbrainzngs
Cloning into '/var/lib/mock/f45-build-31606-654/root/chroot_tmpdir/scmroot/python-musicbrainzngs'...
$ git fetch origin 788e3df025792bc0ad6975ff039f06d6568871dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-musicbrainzngs
 * [new ref]         788e3df025792bc0ad6975ff039f06d6568871dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 788e3df Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild