The language of Erratum 3.1 state that the dfdl:hiddenGroupRef property should be allowed on xs:choice schema components.

This is a major language change that we should consider carefully. Previously it was allowed only on xs:sequence, and I believe that should be the only allowed usage.

Can we review when we made the decision to broaden this to xs:choice as well?

...mikeb

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Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | www.tresys.com