$ git clone -n https://gitee.com/opencloudos-stream/grpc.git /var/lib/mock/dist-ocs23-build-52539-2190/root/chroot_tmpdir/scmroot/grpc
Cloning into '/var/lib/mock/dist-ocs23-build-52539-2190/root/chroot_tmpdir/scmroot/grpc'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/grpc
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 84a80d8 !2 fix GetCpuStatsTest failed occasionally on arm Merge pull request !2 from cunshunxia/master