$ git clone -n https://src.fedoraproject.org/rpms/klettres.git /var/lib/mock/f42-build-863590-171716/root/chroot_tmpdir/scmroot/klettres
Cloning into '/var/lib/mock/f42-build-863590-171716/root/chroot_tmpdir/scmroot/klettres'...
$ git fetch origin 77cf34cee88608b090245715ff298a5182801978:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/klettres
 * [new ref]         77cf34cee88608b090245715ff298a5182801978 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 77cf34c 24.12.0