$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppx-expect.git /var/lib/mock/f40-build-784289-133348/root/chroot_tmpdir/scmroot/ocaml-ppx-expect
Cloning into '/var/lib/mock/f40-build-784289-133348/root/chroot_tmpdir/scmroot/ocaml-ppx-expect'...
$ git fetch origin 6d8e5e8f4e355f35c0deb8775b37d125b96075c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppx-expect
 * [new ref]         6d8e5e8f4e355f35c0deb8775b37d125b96075c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d8e5e8 Rebuild for changed ocamlx(Location) hash