$ git clone -n https://src.fedoraproject.org/rpms/klettres.git /var/lib/mock/f38-build-side-42-init-devel-820839-28340/root/chroot_tmpdir/scmroot/klettres
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-820839-28340/root/chroot_tmpdir/scmroot/klettres'...
$ git fetch origin b9d3a13ec8d8ff6368d3baf7d346cf491e57e5a8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/klettres
 * [new ref]         b9d3a13ec8d8ff6368d3baf7d346cf491e57e5a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9d3a13 feat: 22.12.3