$ git clone -n https://gitee.com/opencloudos-stream/pulseaudio.git /var/lib/mock/dist-ocs23-build-19122-1041/root/chroot_tmpdir/scmroot/pulseaudio
Cloning into '/var/lib/mock/dist-ocs23-build-19122-1041/root/chroot_tmpdir/scmroot/pulseaudio'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/pulseaudio
 * [new ref]                    -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2d285f !2 update to 16.1 Merge pull request !2 from abushwang/master