$ git clone -n https://gitee.com/src-opencloudos-rpms/python-dns.git /var/lib/mock/dist-oc9-build-44309-14591/root/chroot_tmpdir/scmroot/python-dns
Cloning into '/var/lib/mock/dist-oc9-build-44309-14591/root/chroot_tmpdir/scmroot/python-dns'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-dns
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b49747e import python-dns-2.2.1-5.tl4