private function updateOwnersField(FormInterface $form, AccountGroupType $groupType, ClientAccount $account = null)
 {
     $isJoint = $groupType->getType() && $groupType->getType()->getName() == 'Joint Account';
     if ($this->client->isMarried() || $isJoint) {
         $form->add($this->factory->createNamed('owners', new RiaClientAccountOwnerFormType($this->client, $account, $isJoint), null, array('mapped' => false)));
     }
 }