Symfony Request Not Available in EventSubscriber - symfony

Question

Changes to my Entities are logged using an EventSubscriber for Doctrine lifecycle events. I want to log a request id alognside the entity change log entries to see what's happened in one single user action.
Adding the request id is as easy as this:
class RequestIdSubscriber implements EventSubscriberInterface
{
public static function getSubscribedEvents(): array
{
return [KernelEvents::REQUEST => 'addRequestId'];
}
public function addRequestId(GetResponseEvent $event): void
{
$request = $event->getRequest();
$request->attributes->set('RequestId', Uuid::uuid1()->toString());
}
}
The problem is that the request does not seem to be available in the Doctrine EventSubscribers in a reliable way:
class EntityEventSubscriber implements EventSubscriber
{
public function __construct(DelayedEventDispatcher $dispatcher, RequestStack $requestStack, LoggerInterface $logger)
{
$this->dispatcher = $dispatcher;
$this->inventory = new EntityInventory();
$this->requestStack = $requestStack;
$this->logger = $logger;
}
public function getSubscribedEvents(): array
{
return [
Events::postUpdate,
];
}
public function postUpdate(LifecycleEventArgs $args): void
{
// works
$this->logger->debug($this->requestStack->getCurrentRequest()->get('RequestId'));
$entity = $args->getEntity();
$changes = $this->inventory->getChangeSet($entity);
$event = new EntityUpdatedEvent($entity, $changes);
$this->triggerAuditLogEvent($event);
}
public function triggerAuditLogEvent(EntityEvent $event): void
{
// request.CRITICAL: Uncaught PHP Exception Error: "Call to a member function get() on null"
$event->setRequestId($this->requestStack->getCurrentRequest()->get('RequestId'));
$this->dispatcher->dispatch(FhrEvents::GENERIC_ENTITY_EVENT, $event);
}
}
So what really bothers me is that the request seems to be available in one method and if I call the next one, it's already gone.