$ git clone -n https://src.fedoraproject.org/rpms/ocaml-merlin.git /var/lib/mock/f40-build-739786-109290/root/chroot_tmpdir/scmroot/ocaml-merlin
Cloning into '/var/lib/mock/f40-build-739786-109290/root/chroot_tmpdir/scmroot/ocaml-merlin'...
$ git fetch origin 06bf891d3da25eacaa3badde223cbcc7631236fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-merlin
 * [new ref]         06bf891d3da25eacaa3badde223cbcc7631236fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 06bf891 OCaml 5.1 rebuild for Fedora 40