$ git clone -n https://gitee.com/src-opencloudos-rpms/mdds.git /var/lib/mock/dist-oc9-build-70787-47472/root/chroot_tmpdir/scmroot/mdds
Cloning into '/var/lib/mock/dist-oc9-build-70787-47472/root/chroot_tmpdir/scmroot/mdds'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mdds
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75a7499 import mdds-2.0.3-5.tl4