fix follow

@@ -9,7 +9,7 @@
       </div>
       <p v-if="+data.topicJoinNum" class="topic-desc">{{data.topicJoinNum}}人参与讨论</p>
     </div>
-    <WidgetFollow class="option-btn" :topic-id="data.topicId" :follow="data.hasAttention === 'Y'"></WidgetFollow>
+    <WidgetFollow class="option-btn" :topic-id="data.topicId" :follow="data.hasAttention"></WidgetFollow>
   </div>
 </template>
 

@@ -286,7 +286,7 @@ export default {
     if (thumb) {
       data.allowAttention = 0;
     } else {
-      data.hasAttention = data.isAttend === 'Y';
+      data.hasAttention = data.isAttend;
     }
 
     data.topicId = topicId;