fix done is not initialized problem
fix done is not initialized problem


Former-commit-id: 2ac3b3ee4894fc1bb613c8f874f86ac0397824f7
amaliujia/CMUDB-peloton,larryxiao/peloton,larryxiao/peloton,ranxian/peloton,ranxian/peloton,larryxiao/peloton,larryxiao/peloton-1,larryxiao/peloton-1,omegaga/peloton,larryxiao/peloton,amaliujia/CMUDB-peloton,amaliujia/CMUDB-peloton,ranxian/peloton,ranxian/peloton,larryxiao/peloton,omegaga/peloton,larryxiao/peloton-1,larryxiao/peloton-1,amaliujia/CMUDB-peloton,amaliujia/CMUDB-peloton,larryxiao/peloton,omegaga/peloton,ranxian/peloton,amaliujia/CMUDB-peloton,larryxiao/peloton-1,omegaga/peloton,larryxiao/peloton-1,amaliujia/CMUDB-peloton,omegaga/peloton,larryxiao/peloton-1,omegaga/peloton,omegaga/peloton,ranxian/peloton,larryxiao/peloton