Make irreversible field default to false in filters

test/web/mastodon_api/mastodon_api_controller_test.exs

@@ -572,6 +572,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIControllerTest do
       assert response = json_response(conn, 200)
       assert response["phrase"] == filter.phrase
       assert response["context"] == filter.context
+      assert response["irreversible"] == false
       assert response["id"] != nil
       assert response["id"] != ""
     end