title: Custom template for Django's comments application does not display fields
body: <p>I want to use <code>django.contrib.comments</code> in a blogging application and customize the way the form is displayed. My problem is that I can't get the fields to display although displaying the hidden fields works just fine. I had a look at the docs and compared it with the regular way of displaying forms but honestly I don't know why the following doesn't work out:</p>
  
  <pre><code>{% get_comment_form for comments_object as form %}
  &lt;form action="{% comment_form_target %}" method="POST"&gt;
  […]
  {% for hidden in form.hidden_fields %}
          {{ hidden }}
      {% endfor %}
      {% for field in form.fields %}
          {{field}}
      {% endfor %}
  […]
  &lt;/form&gt;
  </code></pre>
  
  <p>The output looks like this:</p>
  
  <pre><code>    &lt;form action="/comments/post/" method="POST"&gt; 
              &lt;input type="hidden" name="content_type" value="flatpages.flatpage" id="id_content_type" /&gt;         
              &lt;input type="hidden" name="object_pk" value="1" id="id_object_pk" /&gt; 
              &lt;input type="hidden" name="timestamp" value="1269522506" id="id_timestamp" /&gt;              
              &lt;input type="hidden" name="security_hash" value="ec4…0fd" id="id_security_hash" /&gt; 
              content_type
              object_pk
              timestamp
              security_hash
              name
              email
              url
              comment
              honeypot
          […]
      &lt;/form&gt; 
  &lt;/div&gt; 
  </code></pre>
  
  <p>Can you tell me what I'm doing wrong? Thanks in advance</p>