bug fix: event loss when watch parent node
bug fix: event loss when watch parent node

baidu/ins,caijieming-baidu/ins,caijieming-baidu/ins,baidu/ins,huayl/ins,tyronecai/ins,fxsjy/ins,huayl/ins,tyronecai/ins,baidu/ins,fxsjy/ins,caijieming-baidu/ins,tyronecai/ins,Kai-Zhang/ins,Kai-Zhang/ins,huayl/ins,fxsjy/ins,Kai-Zhang/ins