$ git clone -n https://src.fedoraproject.org/rpms/katomic.git /var/lib/mock/f40-build-2447249-61347/root/chroot_tmpdir/scmroot/katomic
Cloning into '/var/lib/mock/f40-build-2447249-61347/root/chroot_tmpdir/scmroot/katomic'...
$ git fetch origin cb2060d52cfb2bf5eec16525626001e4dc5cf523:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/katomic
 * [new ref]         cb2060d52cfb2bf5eec16525626001e4dc5cf523 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb2060d 24.01.95