Option "requires" does not work

[krabina]

I tried the following:

{{#drilldowninfo:
 filters=Country (property=Country),
 Place (property=Place,requires=Country),
 |display parameters

But still, both filters are shown from the start. It should be that only the country filter is shown and the place filter appears once a country has been selected.

[gesinn-it-gea]

requires: any number of previously-listed filters, that the user must select a value for before they can see this filter as described in https://www.mediawiki.org/wiki/Extension:Semantic_Drilldown#Getting_started

[gesinn-it-gea]

should be covered by tests