/**
  * {@inheritdoc}
  */
 public function setOption($key, $value)
 {
     // $this->loader is null at this moment so we have to use the definition directly
     if ($this->aContainer->has('conditional_router.routing_loader')) {
         $resolverKeys = $this->aContainer->get('conditional_router.routing_loader')->getResolverKeys();
         if (in_array($key, $this->optionsToAppend)) {
             $value .= $resolverKeys;
         }
     }
     return parent::setOption($key, $value);
 }