--- lineage.module	2008-09-05 02:15:48.000000000 -0500
+++ lineage_fix_parent_zero.module	2009-10-22 13:05:30.000000000 -0500
@@ -53,7 +53,7 @@ function lineage_update_term_r($term, $b
   $tids[$term->tid] = true;
 
   // Update all the children.
-  $result = db_query("SELECT td.tid, td.name, td.weight FROM {term_hierarchy} th LEFT JOIN {term_data} td ON td.tid = th.tid WHERE th.parent = '%d'", $term->tid);
+  $result = db_query("SELECT td.tid, td.name, td.weight FROM {term_hierarchy} th INNER JOIN {term_data} td ON td.tid = th.tid WHERE th.parent = '%d'", $term->tid);
   while ($child = db_fetch_object($result)) {
     // loop protection, just in case.
     if (!isset($tids[$child->tid])) {