$ git clone -n https://gitee.com/src-opencloudos-rpms/frr.git /var/lib/mock/dist-oc9-build-46139-14592/root/chroot_tmpdir/scmroot/frr
Cloning into '/var/lib/mock/dist-oc9-build-46139-14592/root/chroot_tmpdir/scmroot/frr'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/frr
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 485148e import frr-8.4-3.tl4