dedupe parameter not working

[MateuszKrason]

Hi guys,

Recently I started using this solution for creating a prefixsearch. I am doing a request to the endpoint:

GET /photon/api?q=di%20Tirana&layer=street&limit=10&lang=en&dedupe=1

and I am getting a response:

HTTP/1.1 400 Bad Request
Server: nginx/1.24.0 (Ubuntu)
Date: Mon, 29 Sep 2025 20:57:12 GMT
Content-Type: application/json
Content-Length: 165
Connection: keep-alive

{"message":"Unknown query parameter 'dedupe'. Allowed parameters are: [q, location_bias_scale, debug, bbox, limit, osm_tag, geometry, lon, zoom, lang, layer, lat]"}

Can someone help me with this issue? I am using right now photon-opensearch-0.7.4.jar from the latest release.