$ git clone -n https://gitee.com/src-opencloudos-rpms/openstack-neutron.git /var/lib/mock/dist-oc9-epol-build-55371-14780/root/chroot_tmpdir/scmroot/openstack-neutron
Cloning into '/var/lib/mock/dist-oc9-epol-build-55371-14780/root/chroot_tmpdir/scmroot/openstack-neutron'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/openstack-neutron
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 84a355b import openstack-neutron-18.2.0-2.tl4