{% load model_filters %}

<section class="instance_detail_wrapper {{ model }}_detail_wrapper {{ model }}_{{ instance.pk }}_detail_wrapper">
  <header class="instance_header {{ model }}_header">
    <h1>{{ title|default_if_none:instance }}</h1>
  </header>

  <div class="instance_detail {{ model }}_detail">
    {% for name, label, value, is_list in fields %}
      <div class="instance_field {{ model }}_{{ name }}">
        {% if not is_list and value is not None %}
          <span class="instance_field_label {{ model }}_{{ name }}_label">{{ label|capfirst }}</span>
          <span class="instance_field_value {{ model }}_{{ name }}_value">{% spaceless %}
          
            {% if value.get_absolute_url %}
              <a href="{{ value.get_absolute_url }}">{{ value }}</a>
            {% else %}
              {{ value }}
            {% endif %}
            
          {% endspaceless %}</span>
        {% endif %}
        
        {% if is_list and value.all|length %}
          {{ value.all|as_list_html:label|capfirst }}
        {% endif %}
      </div>
    {% endfor %}
  </div>
</section>

{% load model_filters %}

<section class="instance_detail_wrapper {{ model }}_detail_wrapper {{ model }}_{{ instance.pk }}_detail_wrapper">
  <header class="instance_header {{ model }}_header">
    <h1>{{ title|default_if_none:instance }}</h1>
  </header>

  <div class="instance_detail {{ model }}_detail">
    {% for name, label, value, is_list in fields %}
      <div class="instance_field {{ model }}_{{ name }}">
        {% if not is_list and value != None %}
          <span class="instance_field_label {{ model }}_{{ name }}_label">{{ label|capfirst }}</span>
          <span class="instance_field_value {{ model }}_{{ name }}_value">{% spaceless %}
          
            {% if value.get_absolute_url %}
              <a href="{{ value.get_absolute_url }}">{{ value }}</a>
            {% else %}
              {{ value }}
            {% endif %}
            
          {% endspaceless %}</span>
        {% endif %}
        
        {% if is_list and value.all|length %}
          {{ value.all|as_list_html:label|capfirst }}
        {% endif %}
      </div>
    {% endfor %}
  </div>
</section>

Fix None comparison in detail template
Fix None comparison in detail template
