Sorting related objects in the Django Admin form interface [duplicate]

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I am looking to sort the related objects that show up when editing an object using the admin form. So for example, I would like to take the following object:

class Person(models.Model):
    first_name = models.CharField( ... )
    last_name = models.CharField( ... )
    hero = models.ForeignKey( 'self', null=True, blank=True )

and edit the first name, last name and hero using the admin interface. I want to sort the objects as they show up in the drop down by last name, first name (ascending). How do I do that?

Context

• I'm using Django v1.1.
• I started by looking for help in the django admin docs, but didn't find the solution
• As you can see in the example, the foreign key is pointing to itself, but I expect it would be the same as pointing to a different model object.
• Bonus points for being able to filter the related objects, too (eg~ only allow selecting a hero with the same first name)

---

class Person(models.Model):
    first_name = models.CharField( ... )
    last_name = models.CharField( ... )
    hero = models.ForeignKey( 'self', null=True, blank=True )
    class Meta:
        ordering = ['-last_name', 'first_name']

http://docs.djangoproject.com/en/dev/ref/models/options/#ordering

Note: According to the SVN docs, the admin only uses the first of the ordering options, so this is the closest you're gettig to what you want.