$ git clone -n https://src.fedoraproject.org/rpms/quearcode.git /var/lib/mock/f45-build-34223-682/root/chroot_tmpdir/scmroot/quearcode
Cloning into '/var/lib/mock/f45-build-34223-682/root/chroot_tmpdir/scmroot/quearcode'...
$ git fetch origin b93c3a6e7e7afe96724d7ce07332ee774ce54cfd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/quearcode
 * [new ref]         b93c3a6e7e7afe96724d7ce07332ee774ce54cfd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b93c3a6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild