Index: node_widget.form.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/node_widget/includes/node_widget.form.inc,v
retrieving revision 1.17
diff -u -r1.17 node_widget.form.inc
--- node_widget.form.inc	31 Mar 2010 19:06:22 -0000	1.17
+++ node_widget.form.inc	7 Oct 2010 18:51:56 -0000
@@ -161,7 +161,8 @@
  */
 function node_widget_get_fields(&$form) {
   $fields = array();
-  if (isset($form['type'])) {
+  // Be sure we are operating on the node form
+  if (isset($form['#node']) && isset($form['type']) && ($form['type']['#value'] .'_node_form' == $form['form_id']['#value'])) {
     $content_type = content_types($form['type']['#value']);
     foreach ($content_type['fields'] as $field_name => $field) {
       if ($field['type'] == 'nodereference' && $field['widget']['type'] == 'node_widget_node_form') {