Using concrete model inheritance with OneToOneField(parent_link=True) seems to be ignored

[Jeremy Dunck]

This seems to be because local_fields is always blank in these lines from django.db.models.base.ModelBase.new

        # Do the appropriate setup for any model parents.
        o2o_map = dict([(f.rel.to, f) for f in new_class._meta.local_fields
                if isinstance(f, OneToOneField)])

Which causes this elif branch to be taken:

                if base in o2o_map:
                    field = o2o_map[base]
                elif not is_proxy:
                    attr_name = '%s_ptr' % base._meta.module_name
                    field = OneToOneField(base, name=attr_name,
                            auto_created=True, parent_link=True)
                    new_class.add_to_class(attr_name, field)

This misses the point of parent_link.

I'll try to make a simple test case (for some value of "simple"), but can anyone verify? Kooky edge case, I know.