[XBL] Multiple Inheritance

Dear XBL experts,

This email comments on the 7 September 2006 LCWD of XBL 2.0.
In Section 4.5, the specification says:
"If this causes a loop [...] then the user agent must only apply each 
binding in the chain once"                      
This would look like a erroneous content. Why not considering the 
binding in error when there is a loop ? I think this would avoid weird 
cases.

Cyril Concolato