Validation error in CreditNote

Not surprisingly, the CreditNote sample instance now doesn't
validate against the revised schemas:

Attempting validating, namespace-aware parse
Error:file:///c:/d/ubl/2/xml/UBL-CreditNote-2.0-Example.xml:139:23:cvc-complex-type.2.4.b: The content of element 'cac:CreditNoteLine' is not complete. One of '{"urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2":TaxTotal, "urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2":Item}' is expected.

Could one of the business experts please suggest a fix?  The
CreditNote sample is attached.

Jon