Fixed #8825 -- Fixed a small error model field setup (on the model class) from

            # All the fields of any type declared on this model

            new_fields = new_class._meta.local_fields + \

                         new_class._meta.many_to_many + \

                         new_class._meta.local_many_to_many + \

                         new_class._meta.virtual_fields

            field_names = set([f.name for f in new_fields])

class ArticleWithAuthor(Article):

    author = models.CharField(max_length=100)

class M2MBase(models.Model):

    articles = models.ManyToManyField(Article)

class M2MChild(M2MBase):

    name = models.CharField(max_length=50)

__test__ = {'API_TESTS':"""

# Regression for #7350, #7202

# Check that when you create a Parent object with a specific reference to an

    ...

DoesNotExist: ArticleWithAuthor matching query does not exist.

# Regression test for #8825: Make sure all inherited fields (esp. m2m fields, in

# this case) appear on the child class.

>>> M2MChild.objects.filter(articles__isnull=False)

[]

"""}