$ git clone -n https://src.fedoraproject.org/rpms/ocaml-merlin.git /var/lib/mock/f41-build-side-1-2673809-29255/root/chroot_tmpdir/scmroot/ocaml-merlin
Cloning into '/var/lib/mock/f41-build-side-1-2673809-29255/root/chroot_tmpdir/scmroot/ocaml-merlin'...
$ git fetch origin a98db770caddde2fed9681ca172633abe3f0fb09:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-merlin
 * [new ref]         a98db770caddde2fed9681ca172633abe3f0fb09 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a98db77 Generate loaddefs instead of deprecated autoloads