--allow-duplicate-queries not effective for is_in queries

[bosteinert]

We have set --allow-duplicate-queries=yes for our Overpass instance. Nevertheless quiers of the following type ofter fail:

[out:json];node(12571236901) -> .node;.node is_in;area._[boundary=administrative];out geom;

with the following error:

runtime error: open64: 0 Success /osm3s_areas Dispatcher_Client::request_read_and_idx::duplicate_query

Could it be that allowing duplicate queries does not work for this special kind of query? Asking the same query serveral times for other types of queries does not give the duplicate_query error.

[mmd-osm]

You need to add this parameter to the area dispatcher as well, it's required for both dispatcher processes. For reference: openstreetmap/chef@bb74c9b