$ git clone -n https://gitee.com/opencloudos-stream/ocaml.git /var/lib/mock/dist-ocs23-build-46237-2059/root/chroot_tmpdir/scmroot/ocaml
Cloning into '/var/lib/mock/dist-ocs23-build-46237-2059/root/chroot_tmpdir/scmroot/ocaml'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ocaml
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ac6c29 !1 update to 5.0.0 Merge pull request !1 from abushwang/master