修改 评论不上的bug review by hongmo

@@ -239,6 +239,8 @@ export default function detailReducer(state=initialState, action) {
     		return state.setIn(['commentsList', 'page'], 0)
 				.setIn(['commentsList', 'total_page'], 0)
 				.setIn(['commentsList', 'total'], 0)
+				.setIn(['commentsList', 'isFetching'], false)
+				.setIn(['commentsList', 'error'], null)
 				.setIn(['commentsList', 'endReached'], false);
     	}
 		//资讯添加评论