$ git clone -n https://src.fedoraproject.org/rpms/kruler.git /var/lib/mock/f40-build-2104505-50572/root/chroot_tmpdir/scmroot/kruler
Cloning into '/var/lib/mock/f40-build-2104505-50572/root/chroot_tmpdir/scmroot/kruler'...
$ git fetch origin 89330687c811712bf3d355dd1b4e873e980af1f6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kruler
 * [new ref]         89330687c811712bf3d355dd1b4e873e980af1f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8933068 24.01.80