$ git clone -n https://gitee.com/opencloudos-stream/nvidia-570.git /var/lib/mock/dist-oc9-epol-build-229105-81281/root/chroot_tmpdir/scmroot/nvidia-570
Cloning into '/var/lib/mock/dist-oc9-epol-build-229105-81281/root/chroot_tmpdir/scmroot/nvidia-570'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/nvidia-570
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b673b03 !1 update nvidia-570 Merge pull request !1 from yugozhang/master