--- C:\Apache2.2\htdocs\sites\all\modules\nat\nat.module.bak	2009-02-17 04:39:38.000000000 -0200
+++ C:\Apache2.2\htdocs\sites\all\modules\nat\nat.module	2009-11-09 20:29:47.000000000 -0200
@@ -622,19 +622,21 @@
  * @param $relations
  *   An optional array of related terms.
  * @param $synonyms
  *   An optional string of delimited synonyms.
  */
 function _nat_update_terms($terms, $title, $body, $hierarchy, $relations = array(), $synonyms = NULL) {
-  $edit = array(
-    'name' => $title,
-    'description' => $body
-  );
+  $edit = array('name' => $title);
 
   $edit['synonyms'] = !empty($synonyms) ? $synonyms : '';
   foreach ($terms as $term) {
+    if ($body) {
+      $edit['description'] = $body;
+    } else {
+      $edit['description'] = $term->description;
+    }    
     $edit['parent'] = isset($hierarchy[$term->vid]) ? $hierarchy[$term->vid] : array();
     $edit['relations'] = count($relations) ? $relations[$term->vid] : array();
     $edit['weight'] = $term->weight;
     $edit['tid'] = $term->tid;
     $edit['vid'] = $term->vid;
     taxonomy_save_term($edit);