public function postSubmit(FormEvent $event)
    {
        $form = $event->getForm();
        if (!$form->isValid()) {
            return;
        }

        $entity = $event->getData();
        $formHash = $this->getFormHash($form);
        $entityConfiguration = $this->getTranslatableEntityConfiguration($entity);

        if (is_null($entityConfiguration)) {
            return null;
        }

        $this->translationsBackup[$formHash] = [];

        $entityData = [
            'object' => $entity,
            'idGetter' => $entityConfiguration['idGetter'],
            'alias' => $entityConfiguration['alias'],
            'fields' => [],
        ];

        $entityFields = $entityConfiguration['fields'];

        foreach ($entityFields as $fieldName => $fieldConfiguration) {
            if (!isset($this->submittedDataPlain[$formHash][$fieldName])) {
                continue;
            }

            $field = $this->submittedDataPlain[$formHash][$fieldName];

            foreach ($this->locales as $locale) {
                $entityData['fields'][$fieldName][$locale] = $field[$locale . '_' . $fieldName];
            }

            if ($this->masterLocale && isset($field[$this->masterLocale . '_' . $fieldName])) {
                $masterLocaleData = $field[$this->masterLocale . '_' . $fieldName];
                $setter = $fieldConfiguration['setter'];
                $entity->$setter($masterLocaleData);
            }
        }

        $this->translationsBackup[$formHash][] = $entityData;
    }