I assumed the aggregation value on type reference would be inherited on reslicing but the snapshot doesn't show that.... I go from type Resource(any) aggegrate= bundled to derived profile of type Resource(Type)

and the aggregation is not carried through to the slice but still sits on the discriminator element.

Should it?

I added it to the reslice to make it explicit....

See example here: http://build.fhir.org/ig/HL7/davinci-alerts/branches/master/StructureDefinition-admit-notification-messageheader.html

where the 'focus' element is resliced.