diff --git a/core/modules/filter/lib/Drupal/filter/FilterBag.php b/core/modules/filter/lib/Drupal/filter/FilterBag.php
index e8e30d5..599625c 100644
--- a/core/modules/filter/lib/Drupal/filter/FilterBag.php
+++ b/core/modules/filter/lib/Drupal/filter/FilterBag.php
@@ -94,9 +94,7 @@ protected function initializePlugin($instance_id) {
    */
   public function sort() {
     $this->getAll();
-    // @todo Find out why https://bugs.php.net/bug.php?id=50688 is triggered.
-    @uasort($this->instanceIDs, array($this, 'sortHelper'));
-    return $this;
+    return parent::sort();
   }
 
   /**