Deleting a user results in a constraint violation:
Error message: An exception occurred while executing 'DELETE FROM auth_users WHERE id = ?' with params [3]: SQLSTATE[23000]: Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (`studforum-test_authserver`.`vierbergenlars_expire_email_validation`, CONSTRAINT `FK_4C119F00A76ED395` FOREIGN KEY (`user_id`) REFERENCES `auth_users` (`id`))
Deleting a user results in a constraint violation:
```
Error message: An exception occurred while executing 'DELETE FROM auth_users WHERE id = ?' with params [3]: SQLSTATE[23000]: Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (`studforum-test_authserver`.`vierbergenlars_expire_email_validation`, CONSTRAINT `FK_4C119F00A76ED395` FOREIGN KEY (`user_id`) REFERENCES `auth_users` (`id`))
```
Deleting a user results in a constraint violation: