$ git clone -n https://gitee.com/src-opencloudos-rpms/ocaml-findlib.git /var/lib/mock/dist-oc9-build-52737-14603/root/chroot_tmpdir/scmroot/ocaml-findlib
Cloning into '/var/lib/mock/dist-oc9-build-52737-14603/root/chroot_tmpdir/scmroot/ocaml-findlib'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ocaml-findlib
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 12550c3 rebuild