Questionnaire: Generated Item Link Definitions do not resolve for sliced profiles

[oliveregger]

We do wan't to point from the Questionnaire.item.definition to the Extension the element that is mapped
according to https://hl7.org/fhir/questionnaire-definitions.html#Questionnaire.item.definition.

This does not work if we want to target to sliced elements, e.g. in the questionnaire provided, IG Publisher provides an error:

The link 'StructureDefinition-ch-orf-initiator.html#Extension.extension:ch-orf-personalrelation' for "Extension.extension:ch-orf-personalrelation" cannot be resolved (valid targets: 62 targets)

Questionnaire is here: https://build.fhir.org/ig/ahdis/ch-ig/branches/oe_definition_link/Questionnaire-ch-orf-module-initiator.html,
where the first item does not resolve, the other two (without slicing) work.

The target which is not found, could be found in:

https://build.fhir.org/ig/ahdis/ch-ig/branches/oe_definition_link/StructureDefinition-ch-orf-initiator***-definitions***.html#***key_**Extension.extension:ch-orf-personalrelation.extension

could the generated link be adapted to a valid target?

repo to reproduce this behaviour is here: https://github.com/ahdis/ch-ig/tree/oe_definition_link

see also issue hl7ch/ch-orf#144

[lmckenzi]

This is a situation of the canonical reference to a structure definition containing an id not properly resolving to the web page on which that id can be found. We're not sure how much additional work it will be to update the web infrastructure to handle that resolution. Assigning to @grahamegrieve to evaluate.