How to access data from parent form?

Question

symfony

Hello!
There are two FormTypes - Deal and DealPropValue. DealPropValue is subscribed to the FormEvents::SUBMIT event:

$builder->addEventListener(
     FormEvents::SUBMIT,
     function (FormEvent $event) use ($formModifier) {
           $deal = $event->getForm()->getParent()->getData();
    }
);

When submitting the form for DealType, in the event, Deal receives the old values, and not those that were submitted.
How to do it right? Thank you!