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In 1.0, Type Derivation OK (simple) rule 2.2.2 reads: 2.2.2 D's ·base type definition· is not the ·ur-type definition· and is validly derived from B given the subset, as defined by this constraint. In 1.1, the corresponding rule reads: 2.2.2 D.{base type definition} is not ·xs:anySimpleType· and is validly derived from B given S, as defined by this constraint. I think "ur-type definition" has been changed to "xs:anySimpleType" when it should have been changed to "xs:anyType". Derived from a message today from Tobias Koenig on the xml-schema-testsuite list.
During its 2008-11-21 telecon, the schema WG adopted a proposal, to replace "xs:anySimpleType" with "xs:anyType" in "Type Derivation OK (simple)", as suggested in the bug report. The proposal (along with some other changes) can be found at (member-only): http://www.w3.org/XML/Group/2004/06/xmlschema-1/structures.omni.20081121.html
Telcon 2008-11-21 For some reason the resolution reported above does not appear in the minutes. The chair has determined that the omission is an editorial glitch, and that Bugzilla is correct.