Issue #2327775 by DanChadwick: Fixed new default conditional contains remnants...

    $weight = max($weight, $conditional['weight']);

  }

  $conditional['weight'] = $weight + 1;

  $conditional['rules'][0] = array(

  // Add the conditional to form state and rebuild the form.

  $form_state['values']['conditionals'][] = array(

    'rules' => array(

      array(

        'source' => NULL,

        'operator' => NULL,

        'value' => NULL,

      ),

    ),

    'andor' => 'and',

    'action' => 'hide',

    'target' => NULL,

    'weight' => $weight + 1,

  );

  $conditional['action'] = 'hide';

  $conditional['target'] = NULL;

  $conditional['andor'] = 'and';

  // Add the conditional to form state and rebuild the form.

  $form_state['values']['conditionals'][] = $conditional;

  $form_state['rebuild'] = TRUE;

}