$ git clone -n https://gitee.com/opencloudos-stream/cube.git /var/lib/mock/dist-oc9-epol-build-90664-59090/root/chroot_tmpdir/scmroot/cube
Cloning into '/var/lib/mock/dist-oc9-epol-build-90664-59090/root/chroot_tmpdir/scmroot/cube'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/cube
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fc154f2 update