Using special html entites like &, quote or double quote etc. as key for options of webform select component.

Using special html entites like &, quote or double quote etc. as key for options of webform select component produces warning on submission says "an illegal choice has been detected please contact system administrator". I just dig into your code and solved that problem by patching your webform.module file by putting just one line of code at line 2293 as follows. see the bold line.

  if (is_array($elements['#value'])) {
          $value = $elements['#type'] == 'checkboxes' ? array_keys(array_filter($elements['#value'])) : $elements['#value'];
          foreach ($value as $v) {
<strong>            $v = html_entity_decode($v, ENT_QUOTES);
</strong>            if (!isset($options[$v])) {
              form_error($elements, t('An illegal choice has been detected. Please contact the site administrator.'));
              watchdog('form', 'Illegal choice %choice in !name element.', array('%choice' => $v, '!name' => empty($elements['#title']) ? $elements['#parents'][0] : $elements['#title']), WATCHDOG_ERROR);
            }
          }
        }
        elseif ($elements['#value'] !== '' && !isset($options[$elements['#value']])) {

since you recommend use of alphanumeric and _ as charactes for the key. but since todays huge demand of CRMs forces us to integerate webform to that. Since in CRM there is no key|lable pairs just a single a line for options that means there lable and keys are same. So we have to sync it and forces us to also use special charactes for keys in drupal. But there crap it does not work if we use special html entites as i wrote above. Anyway solution is above you have seen. Pls respond me if you have any view for that.