$ git clone -n https://gitee.com/src-opencloudos-rpms/dvdplusrw-tools.git /var/lib/mock/dist-oc9-build-46032-14592/root/chroot_tmpdir/scmroot/dvdplusrw-tools
Cloning into '/var/lib/mock/dist-oc9-build-46032-14592/root/chroot_tmpdir/scmroot/dvdplusrw-tools'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/dvdplusrw-tools
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 80a2f9c import dvd+rw-tools-7.1-3.tl4