Inheritance of anyAttribute in XML Schema

Hi,

I'm sorry, I know I COULD have researched this a little bit better 
myself first. But the XSD spec made my eyes twitch and my head go 
buzzzZZZzzz....

I think I have seen somewhere that when a complex type is derived from 
another, all attributes are inherited automatically (unless killed of by 
a redeclaration with use="prohibited") (in both extension and 
restriction) -- correct me if wrong.

How is that then, with the attribute wildcard, anyAttribute? I suspect 
it is not always inherited, as that would make it really hard to shake 
off anyAttribute from stuff derived from anyType, that is, from anything 
complex at all. IF the ur-type definition really uses the anyAttribute 
formally.

Does anyone know if there's a simple version of how attribute wildcards 
are (not?) inherited?

Soren