$ git clone -n https://src.fedoraproject.org/rpms/python-name-that-hash.git /var/lib/mock/f45-build-31659-654/root/chroot_tmpdir/scmroot/python-name-that-hash
Cloning into '/var/lib/mock/f45-build-31659-654/root/chroot_tmpdir/scmroot/python-name-that-hash'...
$ git fetch origin 8207f4322188363954fa35a7448b84f12f1955c3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-name-that-hash
 * [new ref]         8207f4322188363954fa35a7448b84f12f1955c3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8207f43 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild