Ticket #14485: taxonomy.php.patch

wp-includes/taxonomy.php

@@ -2917 +2917 @@
                 return array();
         $children = get_option("{$taxonomy}_children");
 
-        if ( is_array($children) )
+        if ( is_array($children) && !empty($children) )
                 return $children;
         $children = array();
         $terms = get_terms($taxonomy, array('get' => 'all', 'orderby' => 'id', 'fields' => 'id=>parent'));