$ git clone -n https://gitee.com/opencloudos-stream/nvidia-530.git /var/lib/mock/dist-oc9-epol-build-228846-81240/root/chroot_tmpdir/scmroot/nvidia-530
Cloning into '/var/lib/mock/dist-oc9-epol-build-228846-81240/root/chroot_tmpdir/scmroot/nvidia-530'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/nvidia-530
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8bb69b5 !1 update nvidia-530 Merge pull request !1 from yugozhang/master