$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ancient.git /var/lib/mock/f39-build-2472155-61463/root/chroot_tmpdir/scmroot/ocaml-ancient
Cloning into '/var/lib/mock/f39-build-2472155-61463/root/chroot_tmpdir/scmroot/ocaml-ancient'...
$ git fetch origin ed0f61c19939c3a456a87ed245a681b18e94cb58:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ancient
 * [new ref]         ed0f61c19939c3a456a87ed245a681b18e94cb58 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed0f61c Orphaned for 6+ weeks