Change on get_addressdata check for matching the condition in placex_update

Change on get_addressdata check for matching the condition in placex_update

On placex_update we stop the indexing to the first parent if the rank_search is above 27. We should do the same check in get_adressdata, because place with a rank_address != 30 and a search_rank > 27 will have only 1 parent.
https://github.com/twain47/Nominatim/issues/534