$ git clone -n https://src.fedoraproject.org/rpms/ocaml-lambda-term.git /var/lib/mock/f41-build-854902-167000/root/chroot_tmpdir/scmroot/ocaml-lambda-term
Cloning into '/var/lib/mock/f41-build-854902-167000/root/chroot_tmpdir/scmroot/ocaml-lambda-term'...
$ git fetch origin 5a26de9d6584a7978a50a2b2eb3764181ff03be9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-lambda-term
 * [new ref]         5a26de9d6584a7978a50a2b2eb3764181ff03be9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a26de9 Rebuild for ocaml-uucp 16.0.0