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In discussing how CTA tests are evaluated in 3.12.4, the specification speaks of copying the "base information set properties" of certain nodes, including the element information item itself. It's not clear what exactly is meant by the "base information set properties". I was trying to find out how namespaces are handled, and one can justify copying all in-scope namespaces on the basis that the properties of an EII include [namespace attributes] and [in-scope namespaces]. However, the properties also include [parent], which clearly should not be copied, as well as [attributes] and [children] which are covered by more specific statements. It should also perhaps be made clear that the [references] property of an attribute information item is not copied.
see minutes from the telcon
A wording proposal intended to resolve this issue is now on the server at http://www.w3.org/XML/Group/2004/06/xmlschema-1/structures.b11072.html (member-only link)
On the call of 21 January 2011 the WG approved the wording proposal mentioned in comment 2.
The proposal mentioned in comment 2 has now been integrated into the status-quo documents pointed to from http://www.w3.org/XML/Group/2004/06/xsd-ed-pointers.html (member-only link). Accordingly I'm marking this issue resolved. Michael, if you would close it to signal your agreement with the result, or reopen it to signal disagreement? Thank you.