$ git clone -n https://src.fedoraproject.org/rpms/ocaml-cudf.git /var/lib/mock/f40-build-2179901-51101/root/chroot_tmpdir/scmroot/ocaml-cudf
Cloning into '/var/lib/mock/f40-build-2179901-51101/root/chroot_tmpdir/scmroot/ocaml-cudf'...
$ git fetch origin ca619d77823915b8d29ca1450e0ca9df565b7030:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-cudf
 * [new ref]         ca619d77823915b8d29ca1450e0ca9df565b7030 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca619d7 OCaml 5.1.1 + s390x code gen fix for Fedora 40