Eventgrid: Fetch the user's filter directly from the URL

refs #9029

modules/monitoring/application/controllers/ListController.php

@@ -627,7 +627,6 @@ class Monitoring_ListController extends Controller
             ->handleRequest($this->getRequest());
 
         $this->setupFilterControl($editor);
-        $this->view->filter = $editor->getFilter();
 
         $this->handleFormatRequest($dataView);
         return $dataView;

modules/monitoring/application/views/scripts/list/eventgrid.phtml

@@ -68,7 +68,7 @@ foreach ($summary as $entry) {
         Filter::expression('timestamp', '<', strtotime($day . ' 23:59:59')),
         Filter::expression('timestamp', '>', strtotime($day . ' 00:00:00')),
         $form->getFilter(),
-        $filter
+        Filter::fromQueryString($this->url()->getParams()->toString())
     );
     $data[$day] = array(
         'value'   => $value,