Hello. I have big problem with my validation. I have register form and validator extending RequiredFields. Validation works but I cant figure out how to clear password fields after every wrong submit. Password is ConfirmedPasswordField with default validator.

	
public function RegisterForm() {
		$form = new Form (
			$this,
			'RegisterForm',
			$this->getProfileFields('Registration'),
			new FieldList(
				new LiteralField ('content', $this->obj('RegistrationContent')),
				new FormAction('register', _t('MemberProfiles.REGISTER', 'Register'))
			),
			new MemberProfileValidator($this->Fields())
		);
		return $form;
	}
 

I would probably try and call the setValue method with a parameter of null on the Password FormField in your validator.
You could also achieve this with Javascript as well by checking for a css error class on the Password field and clearing it with Javascript.