QuestionnaireResponse schema is broken when using a Valueset from CSIRO's terminology server as its adding in designation element

[adha-admin]

Describe the bug
The QuestionnaireResponse contains invalid FHIR element designation which it seems comes back from the terminology server.
We believe it is as a result of the version of OntoServer being used and adding this element in the ValueSet.

To Reproduce
Create any coded element in a Questionnaire and populate and review the QuestionnaireResponse output

Query Onto to see response
Fails using this version
https://tx.ontoserver.csiro.au/fhir/ValueSet/$expand?url=http://hl7.org/fhir/ValueSet/administrative-gender
Works ok with this version
https://r4.ontoserver.csiro.au/fhir/ValueSet/$expand?url=http://hl7.org/fhir/ValueSet/administrative-gender

Is it an experimental element added or does the rendered to need to remove this additional element

Expected behavior
The designation element should not be in the response

{
"linkId": "1-Background-PtGender",
"answer": [
{
"valueCoding": {
"system": "http://hl7.org/fhir/administrative-gender",
"code": "female",
"display": "Female",
"designation": [
{
"use": {
"system": "http://terminology.hl7.org/CodeSystem/designation-usage",
"code": "display"
},
"value": "Female"
}
]
}
}
],
"text": "Administrative gender"
}