title: How to real named auth_group_permissions in Django?
body: <p>I want to create fixtures for auth_group_permissions table, but how named it model?
  'auth.group.permissions' is not right.</p>
  
  <pre><code>[
      {
          "model": "auth.group",
          "pk": 1,
          "fields": {"name": "manager"}
      },
      {
          "model": "auth.group",
          "pk": 2,
          "fields": {"name": "executive"}
      },
      {
          "model": "auth.group",
          "pk": 3,
          "fields": {"name": "ordinar"}
      },
      {
          "model": "auth.group.permissions",
          "pk": 1,
          "fields": {
                      "group_id": 1,
                      "permission_id": 7
                      }
      }
  
  ] 
  </code></pre>