Small post fix

boards/templates/boards/post.html

@@ -56,7 +56,7 b''
         </div>
     {% endif %}
 </div>
-{% if post.thread_new.tags.exists %}
+{% if post.is_opening and post.thread_new.tags.exists %}
     <div class="metadata">
         <span class="tags">
             {% for tag in post.thread_new.get_tags %}