$ git clone -n https://src.fedoraproject.org/rpms/ocaml-fmt.git /var/lib/mock/f40-build-2212174-52258/root/chroot_tmpdir/scmroot/ocaml-fmt
Cloning into '/var/lib/mock/f40-build-2212174-52258/root/chroot_tmpdir/scmroot/ocaml-fmt'...
$ git fetch origin 8ec4780958217cf46ba1b5934a3cfbd7a5cb0552:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-fmt
 * [new ref]         8ec4780958217cf46ba1b5934a3cfbd7a5cb0552 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ec4780 OCaml 5.1.1 + s390x code gen fix for Fedora 40