$ git clone -n https://gitee.com/src-opencloudos-rpms/libdvdread.git /var/lib/mock/dist-oc9-build-58334-16463/root/chroot_tmpdir/scmroot/libdvdread
Cloning into '/var/lib/mock/dist-oc9-build-58334-16463/root/chroot_tmpdir/scmroot/libdvdread'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libdvdread
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 09823e4 import libdvdread-6.1.3-4.tl4