Cardinality of the SubmissionSet author

[qligier]

https://build.fhir.org/ig/ehealthsuisse/ch-epr-fhir/StructureDefinition-ch-mhd-submissionset-comprehensive.html

In the CHMhdSubmissionSetComprehensive profile, the List.source (mapped to SubmissionSet.author) is optional (0..1). In the Ergänzung 1 zum Anhang 5 §1.2.4.2, the SubmissionSet.author is required.

[qligier]

https://ehealthsuisse.github.io/EPR-by-example/ProvideAndRegister/#submission-set says:

The author element is optional in the EPR. If present, it shall convey the information on the person, which initiated the request.

It's inconsistent with Ergänzung 1 zum Anhang 5

[qligier]

In https://profiles.ihe.net/ITI/TF/Volume3/ch-4.2.html#4.2

The author attribute defines a structure to hold its sub-attributes that are individually defined in Sections 4.2.3.1.4.1 through 4.2.3.1.4.5. authorPerson – zero or one authorInstitution – zero or more authorRole – zero or more authorSpecialty – zero or more authorTelecommunication – zero or more At least an authorPerson, authorTelecommunication or authorInstitution sub-attribute shall be present when the author attribute is included in the metadata.

[qligier]