$ git clone -n https://gitee.com/opencloudos-stream/gnome-shell.git /var/lib/mock/dist-ocs23-build-42190-2059/root/chroot_tmpdir/scmroot/gnome-shell
Cloning into '/var/lib/mock/dist-ocs23-build-42190-2059/root/chroot_tmpdir/scmroot/gnome-shell'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/gnome-shell
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cbdf1a3 !6 Rebuild for gcr-4.1.0 Merge pull request !6 from ZoeDong/master