$ git clone -n https://gitee.com/opencloudos-stream/python-py27hash.git /var/lib/mock/dist-oc9-epol-build-95614-59672/root/chroot_tmpdir/scmroot/python-py27hash
Cloning into '/var/lib/mock/dist-oc9-epol-build-95614-59672/root/chroot_tmpdir/scmroot/python-py27hash'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/python-py27hash
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d5148a5 update