$ git clone -n https://gitee.com/wency_cn/lldb.git /var/lib/mock/dist-an23-build-492459-74553/root/chroot_tmpdir/scmroot/lldb
Cloning into '/var/lib/mock/dist-an23-build-492459-74553/root/chroot_tmpdir/scmroot/lldb'...
$ git fetch origin 5b4c35fa9aa51f42d5cee33ba553477cb83f1cb9:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/lldb
 * [new ref]         5b4c35fa9aa51f42d5cee33ba553477cb83f1cb9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b4c35f Update code from upstream