fix: memory overflow

Author: jae-jae

src/QueryList.php

@@ -104,6 +104,15 @@ public static function config()
      * Destruction of resources
      */
     public function destruct()
+    {
+        unset($this->query);
+        unset($this->kernel);
+    }
+
+    /**
+     * Destroy all documents
+     */
+    public static function destructDocuments()
     {
         phpQuery::$documents = [];
     }