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The three tests validate-constraints-1 to -3 are in SchemaValidation/ValidateExpression, not in Optional/SchemaValidation/ValidateExpression as listed in the catalog. I'm not sure where they are meant to be, but I'm updating the catalog pro tem.
Yes, they were meant to be in SchemaValidation/ValidateExpression, not in Optional/SchemaValidation/ValidateExpression . Thank you for fixing the catalog file.