it removes existing faceted values after applying filters

Yes you are filtering on those two values so the facets are going to include only those

but i want facets contains all the values that refers to my query not my filters

We solved this by making two parallel requests, one with the filters and one without. Then we use the first request to populate the search results, and the second request to populate the filters.

Yes this is the way to do it.

(You can use the

multisearch

endpoint to do this with one trip to the server)

Thank you