If skin #type is invalid in skin plugin, last widget gets displayed twice

On this page, "radio" is listed as an option for a skinr type. It should be "radios".

http://skinr.org/skin-property-reference

(Also, please turn off the auto-rotation on the home tab, if that's an easy change! It's hard to follow the instructions with the pages turning.)

If an invalid type is used (such as radio), then skin options will duplicate.

For example, the definition below has one error: an invalid type for the second skin, "asdfasdf". The effect of the faulty code is General Styles will display twice. See screenshot.

  $skins['acquia_marina_general_styles'] = array(
    'title' => t('General Styles'),
    'type' => 'select',
    'attached' => array('css' => array('css/skins.css')),
    'default status' => TRUE,
    'group' => 'general',
    'options' => array(
      'rounded_corner' => array(
          'title' => t('Rounded Corner'), 
          'class' => array('marina-rounded-corners')
      ),
    ),
  );
  
  $skins['acquia_marina_my_lists'] = array(
    'title' => t('Lists Styles'),
    'type' => 'asdfsadf',
    'attached' => array('css' => array('css/skins.css')),
    'default status' => TRUE,
    'group' => 'general',
    'options' => array(
      'option_1' => array(
         'title' => t('Apply equal heights'),
         'class' => array('equal-heights'),
       ),
    ),
  );