优化首页加载 review by 盖剑秋

@@ -257,7 +257,7 @@ export default class Home extends React.Component {
 			case 'recommendation':
                 if (this.props.recommendation.size == 0) {
                     if (this.props.isLoadingMore && this.props.isFetching) {
-
+                        return null;
                     } else {
                         return null;
                     }