> I suppose this is something which should be fixed.  I am not sure of the
> purpose of Lukas's override... hopefully he can shine some light on its
> intended purpose.

Check out these two threads:

http://lists.squeakfoundation.org/pipermail/v3dot9/2006-January/000188.html
http://lists.squeakfoundation.org/pipermail/v3dot9/2006-February/000229.html

Cheers,
Lukas

-- 
Lukas Renggli
http://www.lukas-renggli.ch