Undefined index in select_or_other_field_widget_validate()

Seems to be related to this
http://drupal.org/node/1494980#comment-5824810

I've committed a change to this, will appear in next dev snapshot.

<?php

  // Add values to available options is configured to do so.
  if (!empty($form_state['field'][$field_name][$element['#parents'][1]]['instance'])) {
    $instance = $form_state['field'][$field_name][$element['#parents'][1]]['instance'];
  }
  else {
    $instance = field_widget_instance($element, $form_state);
  }

?>

I think there might be a better way to go about it.
The problem with the code is that it is assumed that

  $field_name = $element['#parents'][0];

and that the other thingo (language?) is at $element['#parents'][1]

but of course it doesn't have to be

Ideally it would just be $instance = field_widget_instance($element, $form_state); but that seems to fail with 'drag and drop lists' widget, as per the other issue.

Suggestions welcome

I just updated to the dev release, which includes the patch in #2. This fixed the issue i was having with commerce_custom_line_items (see http://drupal.org/node/1632256)

Thanks

great thanks