smithumble

### Expected behaviour ``` ❯ python manage.py makemigrations No changes detected ``` ### Actual behaviour ``` ❯ python manage.py makemigrations Migrations for 'social_django': social_django/migrations/0012_alter_association_id_alter_code_id_alter_nonce_id_and_more.py - Alter field id on association...

Validation error is lost due to replacement with parent model validation error

1

```python from schematics.models import Model from schematics.types import StringType, ModelType from schematics.exceptions import ValidationError, DataError import schematics class ChildModel(Model): field1 = StringType(required=True) field2 = StringType(required=True) field3 = StringType(required=True) class ParentModel(Model):...