$ git clone -n https://gitee.com/src-opencloudos-rpms/python-docker.git /var/lib/mock/dist-oc9-build-53157-14748/root/chroot_tmpdir/scmroot/python-docker
Cloning into '/var/lib/mock/dist-oc9-build-53157-14748/root/chroot_tmpdir/scmroot/python-docker'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-docker
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a3fd674 import python-docker-6.0.1-3.tl4