$ git clone -n https://gitee.com/src-opencloudos-rpms/iptables.git /var/lib/mock/dist-oc9-build-127702-76946/root/chroot_tmpdir/scmroot/iptables
Cloning into '/var/lib/mock/dist-oc9-build-127702-76946/root/chroot_tmpdir/scmroot/iptables'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/iptables
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3217aa4 import iptables-1.8.9-3.tl4