$ git clone -n https://gitee.com/src-opencloudos-rpms/ocaml-ocamlbuild.git /var/lib/mock/dist-oc9-build-70939-47493/root/chroot_tmpdir/scmroot/ocaml-ocamlbuild
Cloning into '/var/lib/mock/dist-oc9-build-70939-47493/root/chroot_tmpdir/scmroot/ocaml-ocamlbuild'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ocaml-ocamlbuild
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9f4e70 import ocaml-ocamlbuild-0.14.2-3.tl4