Issue #3301075: Provide a method in QueryString for programmatically called facets

src/Plugin/facets/url_processor/QueryString.php

@@ -84,7 +84,7 @@ class QueryString extends UrlProcessorPluginBase {
     }
 
     // First get the current list of get parameters.
-    $get_params = $this->request->query;
+    $get_params = $this->urlGenerator::urlParameters($this->request->query);
 
     // When adding/removing a filter the number of pages may have changed,
     // possibly resulting in an invalid page parameter.
@@ -312,7 +312,7 @@ class QueryString extends UrlProcessorPluginBase {
    * is an array of raw values.
    */
   protected function initializeActiveFilters() {
-    $url_parameters = $this->request->query;
+    $url_parameters = $this->urlGenerator::urlParameters($this->request->query);
 
     // Get the active facet parameters.
     $active_params = $url_parameters->get($this->filterKey);