Validation occurs on disabled filter

Working on a localhost install and the domain is a singular word. While this in itself is another issue, #744970: Domain validation is way too strict, the validation of the filter form itself fails even with the filter in a disabled state.

function wysiwyg_filter_filter_wysiwyg_settings_validate($form, &$form_state) {
  $values =& $form_state['values']['filters']['wysiwyg']['settings'];
  // Don't validate disabled filters.
  if (empty($form_state['values']['filters']['wysiwyg']['status'])) {
    return;
  }
 ...
}