Fehlerhafte Integration von VoidFormDataProcessor bei INullableFormField

        $this->form->appendChildren([
            FormContainer::create('users')
                ->appendChildren([
                    IntegerFormField::create('generateUsersAmount')
                        ->minimum(0)
                        ->maximum(9999)
                        ->nullable()
                        ->step(1)
                ])
        ]);
        $this->form->getDataHandler()->addProcessor(new VoidFormDataProcessor('generateUsersAmount'));