$ git clone -n https://src.fedoraproject.org/rpms/kf5-ktnef.git /var/lib/mock/f39-build-2081663-49778/root/chroot_tmpdir/scmroot/kf5-ktnef
Cloning into '/var/lib/mock/f39-build-2081663-49778/root/chroot_tmpdir/scmroot/kf5-ktnef'...
$ git fetch origin 690868cbfc73269ac3a203ccaab3eb4cf487b8d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-ktnef
 * [new ref]         690868cbfc73269ac3a203ccaab3eb4cf487b8d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 690868c 23.08.4