$ git clone -n https://gitee.com/src-opencloudos-rpms/elixir.git /var/lib/mock/dist-oc9-epol-build-53415-14768/root/chroot_tmpdir/scmroot/elixir
Cloning into '/var/lib/mock/dist-oc9-epol-build-53415-14768/root/chroot_tmpdir/scmroot/elixir'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/elixir
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ecd1ed import elixir-1.14.3-2.tl4