FacetBlockAjaxController::ajaxFacetBlockView() should not be passing full URL to CurrentPathStack

Hello,

After some tests with Facets Ajax block feature, i find a bad practice.
The path given in parameter of inbound and outbound processors must to be clean (without query parameters).

The path built with "facet_link" parameter is directly given in paramters of processInboud method in FacetBlockAjaxController::ajaxFacetBlockView() :

  public function ajaxFacetBlockView(Request $request) {

...

    $path = $request->request->get('facet_link');

...

    $processed = $this->pathProcessor->processInbound($path, $new_request);

...

Query parameters are available in the "$new_request" variable and should not be in "$path".

Thanks to clear "$path" variable before "processInbound()" call :

$parsed_path = parse_url($path);
$processed = $this->pathProcessor->processInbound($parsed_path['path'], $new_request);

EDIT: Add patch proposal