$ git clone -n https://src.fedoraproject.org/rpms/ocaml-zmq.git /var/lib/mock/f40-build-2265425-54598/root/chroot_tmpdir/scmroot/ocaml-zmq
Cloning into '/var/lib/mock/f40-build-2265425-54598/root/chroot_tmpdir/scmroot/ocaml-zmq'...
$ git fetch origin 6e1e91f94334a4e76e9d81e1ec39415f2f95dbeb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-zmq
 * [new ref]         6e1e91f94334a4e76e9d81e1ec39415f2f95dbeb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6e1e91f OCaml 5.1.1 + s390x code gen fix for Fedora 40