Optimized post reflinks caching

boards/templates/boards/post.html

@@ -4,7 +4,7 b''
 
 {% get_current_language as LANGUAGE_CODE %}
 
-{% cache 600 post post.id post.thread_new.last_edit_time truncated moderator LANGUAGE_CODE need_open_link %}
+{% cache 600 post post.id thread.last_edit_time truncated moderator LANGUAGE_CODE need_open_link %}
     {% spaceless %}
         {% with thread=post.thread_new %}
             {% if thread.archived %}
@@ -69,6 +69,7 b''
                     {{ post.text.rendered }}
                 {% endif %}
             {% endautoescape %}
+            {% cache 600 post_replies post.id post.last_edit_time moderator LANGUAGE_CODE %}
             {% if post.is_referenced %}
                 <div class="refmap">
                     {% trans "Replies" %}:
@@ -78,6 +79,7 b''
                     {% endfor %}
                 </div>
             {% endif %}
+            {% endcache %}
         </div>
         {% if post.is_opening and thread.tags.exists %}
             <div class="metadata">