$ git clone -n https://src.fedoraproject.org/rpms/chessx.git /var/lib/mock/f45-build-3693-326/root/chroot_tmpdir/scmroot/chessx
Cloning into '/var/lib/mock/f45-build-3693-326/root/chroot_tmpdir/scmroot/chessx'...
$ git fetch origin a441f7651c78e50b73406b61d6ec3d169c1d2f25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/chessx
 * [new ref]         a441f7651c78e50b73406b61d6ec3d169c1d2f25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a441f76 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild