$ git clone -n https://src.fedoraproject.org/rpms/ocaml-fpath.git /var/lib/mock/f40-build-783949-133234/root/chroot_tmpdir/scmroot/ocaml-fpath
Cloning into '/var/lib/mock/f40-build-783949-133234/root/chroot_tmpdir/scmroot/ocaml-fpath'...
$ git fetch origin be5a0594197a6d8c0d0dbb43e7a09b029fc99bbe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-fpath
 * [new ref]         be5a0594197a6d8c0d0dbb43e7a09b029fc99bbe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be5a059 Bump and rebuild