Default Managers

[rbatukaev@…]

When I do not define any managers, I get no errors. However, when I do the following:

class User(AbstractUser):
    # some fields
    objects = model.Manager()
    hstore_manager = hstore.HStoreManager()

I get

AttributeError at'Manager' object has no attribute 'get_by_natural_key'

There is something wrong with /django/contrib/auth/backends.py in authenticate method on this line:

user = UserModel._default_manager.get_by_natural_key(username)

[Tim Graham]

The default manager should inherit from ​BaseUserManager or implement its methods.