fix recommend list

@@ -100,7 +100,6 @@ export default {
   },
   mounted() {
     this.colWidthForTwo = Math.floor(this.$el.offsetWidth / 2);
-    this.fetching = true;
   },
   computed: {
     ...mapYohoState(['yoho']),
@@ -118,6 +117,7 @@ export default {
     ...mapMutations(['CHANGE_AUTHOR_FOLLOW']),
     init() {
       this.recommendArticles = {};
+      this.fetching = true;
       this.syncServiceArticleDetail();
     },
     onScroll({scrollTop}) {