$ git clone -n https://gitee.com/src-opencloudos-rpms/extra-enforcer-rules.git /var/lib/mock/dist-oc9-build-69780-47338/root/chroot_tmpdir/scmroot/extra-enforcer-rules
Cloning into '/var/lib/mock/dist-oc9-build-69780-47338/root/chroot_tmpdir/scmroot/extra-enforcer-rules'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/extra-enforcer-rules
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f902cc import extra-enforcer-rules-1.5.1-3.tl4