$ git clone -n https://gitee.com/opencloudos-stream/ocaml-dune.git /var/lib/mock/dist-ocs23-build-46246-2059/root/chroot_tmpdir/scmroot/ocaml-dune
Cloning into '/var/lib/mock/dist-ocs23-build-46246-2059/root/chroot_tmpdir/scmroot/ocaml-dune'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ocaml-dune
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 89ec6ba !1 upgrade to 3.10.0 Merge pull request !1 from cunshunxia/master