Re: Make an required attribute optional, by restriction?

Just for information:
 
The bug is in msxml 4 Core Services SP1
I posted this error to xmlbugs@microsoft.com <mailto:xmlbugs@microsoft.com>
and got the following response today:
 
 
Hi Rainer, 

Thank you for choosing to use this alias. This is known bug in MSXML 4.0. It
will be fixed in the next MSXML 4.0 Service pack. 

Kindly do inform your peers of the existence of this alias and send us other
such bug reports as and when you encounter them.

[... followed by the usual motivations to post any bugs you can find.]

Thank You!

Regards

Karthik