$ git clone -n https://src.fedoraproject.org/rpms/safekeep.git /var/lib/mock/f45-build-35522-695/root/chroot_tmpdir/scmroot/safekeep
Cloning into '/var/lib/mock/f45-build-35522-695/root/chroot_tmpdir/scmroot/safekeep'...
$ git fetch origin 616c122df6f64055b1afbe0a38b6bcc897c1f611:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/safekeep
 * [new ref]         616c122df6f64055b1afbe0a38b6bcc897c1f611 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 616c122 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild