$ git clone -n https://src.fedoraproject.org/rpms/gamerzillagobj.git /var/lib/mock/f45-build-9411-403/root/chroot_tmpdir/scmroot/gamerzillagobj
Cloning into '/var/lib/mock/f45-build-9411-403/root/chroot_tmpdir/scmroot/gamerzillagobj'...
$ git fetch origin fa50049708bf7ee6a1ba257a150e1c1b51f7674a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gamerzillagobj
 * [new ref]         fa50049708bf7ee6a1ba257a150e1c1b51f7674a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fa50049 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild