/**
* Process values attached to the form.
*
* @param array $values Values
* @return array Values processed
*/
protected function _processValues($values)
{
$values = parent::_processValues($values);
if ($this->hasInstance()) {
$password = $this->getElement('password');
if (null !== $password && !$password->getValue()) {
unset($values['password']);
}
}
return $values;
}
