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Description
Per discussion at https://chat.fhir.org/#narrow/stream/179255-questionnaire/topic/get.20questionnaire.20user.20input/near/270751805, it seems that if an item is required, but any of its parent items is not, then the item is not really required. This rule is not stated either in https://build.fhir.org/ig/HL7/sdc/behavior.html#required or https://www.hl7.org/fhir/questionnaire-definitions.html#Questionnaire.item.required. I think it needs to stated in both places.
Suggested sentence to include: "Note that if an item is required but its parent item is not, then the item is only required to appear in the QuestionnaireResponse if the parent item is included."