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4.12.6 Treat Norm / rule 1 "typeswitch ( [[ Expr ]]_Expr ) as $fs:new" Delete "as $fs:new". "case SequenceType return $fs:new" Insert "$fs:new as" after "case". "default return fn:error()" Insert "$fs:new" after "default" (if variables are mandatory in Core case clauses).
Thank you for your comment. Each of these items has been addressed as you suggested.