$ git clone -n https://src.fedoraproject.org/rpms/ocaml-ppx-compare.git /var/lib/mock/f45-build-20660-572/root/chroot_tmpdir/scmroot/ocaml-ppx-compare
Cloning into '/var/lib/mock/f45-build-20660-572/root/chroot_tmpdir/scmroot/ocaml-ppx-compare'...
$ git fetch origin d67d720661472f6a1b3e3f863114e7f92c8edcbb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-ppx-compare
 * [new ref]         d67d720661472f6a1b3e3f863114e7f92c8edcbb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d67d720 OCaml 5.5.1 rebuild