$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ocamlgraph.git /var/lib/mock/f40-build-2243108-53669/root/chroot_tmpdir/scmroot/ocaml-ocamlgraph
Cloning into '/var/lib/mock/f40-build-2243108-53669/root/chroot_tmpdir/scmroot/ocaml-ocamlgraph'...
$ git fetch origin 0a94129a97d6c60ad616be5afde59a123e15c2ed:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ocamlgraph
 * [new ref]         0a94129a97d6c60ad616be5afde59a123e15c2ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a94129 OCaml 5.1.1 + s390x code gen fix for Fedora 40