Don't reveal hiddenLabels that were used for matching

[osma]

Currently when a user performs a search that matches via a hiddenLabel (e.g. "joki" matches "joet" in YSO and "helsinki kallio" matches "Helsinki -- Kallio" in YSA), the autocomplete box shows which hiddenLabel was matched:

It might be better to show just the real label of the concept ("joet" in this case) and not reveal the hidden label at all.

[osma]

Same applies also to the search result list:

[osma]

But the hit via hiddenLabel shouldn't be shown at all in the autocomplete lists if there is another kind of match to the same concept (prefLabel or altLabel).

[osma]

I've tried to come up with a way of implementing this in the SPARQL queries, but I can't figure it out. A possible alternative would be to post-process results of the search method call in JavaScript.