<instant-column> does not show "related" values

[fvorraa]

data.item has following value:

{
	categoryId:"D",
	costString:"000155-14-216",
	descriptionEng:"Contianer fright to vendor  hire0467  ( 5 Conteiners)",
	descriptionNor:"Brakkerigg retur transport    sak0467 MAL (5 brakker)",
	equipmentCategory:{
		description:"Direktefakturert Materiell",
		id:"D",
		primaryKey:"D"
	},
	history:true,
	id:"96.02.1503",
	parentId:"96.02",
	primaryKey:"96.02.1503"
}

does not show the related description. Only members of entity (first level) is displayed.

[fvorraa]

This can be handled through use of custom renderer.

But there is an issue related to sorting. Sorting will be performed on the original value and not the rendered value.