Multi-table inheritance and child model admin add pages

Hi,
I have the following problem with admin and multi table inheritance I
don't understand (django 1.1.1).

Model definition

class Place(models.Model):
name = models.CharField(max_length=50)
address = models.CharField(max_length=80)

class Restaurant(Place):
serves_hot_dogs = models.BooleanField()
serves_pizza = models.BooleanField()

In the admin pages for adding restaurant instances I see the field of
the parent class (name and address) and the parent instance get
created as expected.

How can I link directly to an _exixting_ Place instance?
If I fill in name and address in the child admin add page, then I get
duplicates in the parent table.

Is there a solution or I am missing something trivial?

Thanks in advance,

__peppo

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