anchor.diff:        "emails": [],
         "phones": [],
         "postalAddresses": [],
  -      "avatar": null
  +      "avatar": null,
  +      "birthday": null
       });
     });
   }
  
positive.code:             'country': null
            }
          ],
          'avatar': null
        },
      ),
    ]);
  
negative.code:           ],
            'emails': [
              {'label': 'label'}
            ],
            'birthday': '1994-02-01'
          },
        ];
      }
  