[IMP]优化任务阶段默认值方法，以便继承
[IMP]优化任务阶段默认值方法，以便继承

gilbert-yuan/gooderp_addons,Judystudy/gooderp_addons,GoodERPJeff/gooderp_addons,OpenERPJeff/gooderp_addons,gilbert-yuan/gooderp_addons,luoguizhou/gooderp_addons,floraXiao/gooderp_addons,floraXiao/gooderp_addons,OpenERPJeff/gooderp_addons,floraXiao/gooderp_addons,gilbert-yuan/gooderp_addons,GoodERPJeff/gooderp_addons,luoguizhou/gooderp_addons,GoodERPJeff/gooderp_addons,Judystudy/gooderp_addons,OpenERPJeff/gooderp_addons,luoguizhou/gooderp_addons,Judystudy/gooderp_addons,gilbert-yuan/gooderp_addons