Fix style for article references with definitions

src/components/Definition.vue

@@ -66,7 +66,7 @@ var Definition = {
       this.$emit('article-click', item)
     },
     has_article_ref: function(item){
-      if(item.items.length && item.items[0].type_ == "article_ref")
+      if(item.items.length && item.items[0].type_ == "article_ref" && item.items[0].definition_id === undefined)
         {
           return "true";
         }