title: Django prefetch_related failing to pass data to template
body: <p>I have two Django models:</p>
  
  <pre><code>class Product(models.Model):
      name = models.CharField(max_length=80, null=True)
      is_active = models.BooleanField(default=False, null=False)
  
  class Image(models.Model):
      url = models.CharField(max_length=255, unique=True, null=False)
      product = models.ForeignKey('Product', related_name='images')
  </code></pre>
  
  <p>I have a specific set of products.  Each product has multiple images.  The initial call looks something like:</p>
  
  <pre><code>product_list = product_list.filter(is_active=True).prefetch_related('images')
  </code></pre>
  
  <p>The product_list then gets whittled down depending on filters that are applied.</p>
  
  <p>When I try to use the product_list within the display layer (template), I iterate the list of products.  I can access all the product's fields <em>except</em>  its images.</p>
  
  <p>{{ product.images.0.id }}  ==> empty</p>
  
  <p>{{ product.images }}  ==> returns Image.None</p>
  
  <p>Running the code through the debugger, I can see the Image SQL query being executed, it's just that none of the data is passed to the template.  There definitely is data there, as I can verify the query running it through my SQL client.  Does any one know why this is happening?  How do I get access to the Images for a given product?</p>