$ git clone -n https://src.fedoraproject.org/rpms/python-manatools.git /var/lib/mock/f45-build-31426-652/root/chroot_tmpdir/scmroot/python-manatools
Cloning into '/var/lib/mock/f45-build-31426-652/root/chroot_tmpdir/scmroot/python-manatools'...
$ git fetch origin b7eb447091c08093c321d9c82df9f11e683d616d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-manatools
 * [new ref]         b7eb447091c08093c321d9c82df9f11e683d616d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7eb447 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild