title: Get queryset of foreignkey
body: <p>I need to obtain a queryset of a foreignkey but I haven't been able to figured out how.</p>
  
  <p>I have the following model:</p>
  
  <pre><code>class Contact(models.Model):
      owner = models.ForeignKey(CustomUser, related_name='contact_set')
      referenced = models.ForeignKey(CustomUser, related_name='contacted_by_set')
  </code></pre>
  
  <p>Then, for the current user I need a queryset that retrieves the referenced Users. The following returns Contact objects, I need User objects:</p>
  
  <pre><code>print request.user.contact_set.all()
  </code></pre>
  
  <p>Also, it needs to be a queryset because it will be used by a ModelMultipleChoiceField.</p>
  
  <p>Thanks</p>