$ git clone -n https://gitee.com/opencloudos-stream/emacs.git /var/lib/mock/dist-ocs23-build-131915-9194/root/chroot_tmpdir/scmroot/emacs
Cloning into '/var/lib/mock/dist-ocs23-build-131915-9194/root/chroot_tmpdir/scmroot/emacs'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/emacs
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4282e6f !2 [I99OVK]:Rebuild for jansson in opencloudos-stream Merge pull request !2 from ocs-bot/master