Conflict between empty role value and SOAP 1.2's use of xml:base

From [1] it says:

"Omitting the SOAP role attribute information item is equivalent to
supplying that attribute with a value of
"http://www.w3.org/2002/06/soap-envelope/role/ultimateReceiver". An
empty value for this attribute is equivalent to omitting the attribute
completely, i.e. targeting the SOAP header block at an ultimate SOAP
receiver."

However, "" is a value relative URI and so this statement conflicts with
our use of xml:base [2] and our use of relative URIs:

"URIs used as values in information items identified by the
"http://www.w3.org/2002/06/soap-envelope" and
"http://www.w3.org/2002/06/soap-encoding" XML namespaces can be either
relative or absolute."

Proposed resolution: Remove the last sentence in the above paragraph so
that it reads:

"Omitting the SOAP role attribute information item is equivalent to
supplying that attribute with a value of
"http://www.w3.org/2002/06/soap-envelope/role/ultimateReceiver"."

Henrik Frystyk Nielsen
mailto:henrikn@microsoft.com

[1] http://www.w3.org/TR/2002/WD-soap12-part1-20020626/#soaprole
[2] http://www.w3.org/TR/2002/WD-soap12-part1-20020626/#useofuris