Try not rendering empty post

Author: rondy

blog/categories.html

@@ -12,7 +12,9 @@ <h5 id="#{{ category | first }}">&raquo; {{ category | first | capitalize }}</h5
       <ul>
       {% for posts in category %}
         {% for post in posts %}
-          <li><a href="{{ post.url }}">{{ post.title }}</a> <span class="byline">&dash; {{ post.date | date: "%B %d, %Y" }}</span></li>
+          {% if post != null %}
+            <li><a href="{{ post.url }}">{{ post.title }}</a> <span class="byline">&dash; {{ post.date | date: "%B %d, %Y" }}</span></li>
+          {% endif %}
         {% endfor %}
       {% endfor %}
       </ul>