title: Django related_name default syntax
body: <p>According to the <a href="https://docs.djangoproject.com/en/2.0/topics/db/models/#abstract-related-name" rel="nofollow noreferrer">documentation</a>, related names must be unique. Again according to the <a href="https://docs.djangoproject.com/en/2.0/topics/db/queries/#backwards-related-objects" rel="nofollow noreferrer">documentation</a> the default value, (if not set explicitly by the developer) is <code>FOO_set</code>, where <code>FOO</code> is the source model name.</p>
  
  <p>So if I have two foreign keys (pointing to two different models, of course), wouldn't the (default) related names be similar? </p>