Create a model subclass, from a parent superclass, in Django, while using concrete inheritance ... hmmm

another_way.py

class MySuperClass(Model):
    # some stuff follows ...
    pass


class MySubClass(MySuperClass):
    # unique fields
    pass

obj = MySuperClass.objects.get(pk=1)
# will potentially error about required fields ...
# in my case, created/modified auto_now fields
subobj = MySubClass.objects.create(mysuperclass_ptr=obj)

# alternative
kwargs = model_to_dict(obj)
# {'id': 1L, 'author': 1L, ... etc}
# errors because model_to_dict is lossy - doesn't get me an auth.User
# instance for the 'author' field, for example ...
subobj = MySubClass.objects.create(mysuperclass_ptr=obj, **kwargs)

# but lol, this works ....
if obj.__class__ != MySubClass:
    obj.__class__ = MySubClass
    obj.save()
    
# THX PYTHONS, I GUESS!