Index: C:/Xampp/htdocs/development/subversion/wordpress/wp-admin/admin-functions.php
===================================================================
--- C:/Xampp/htdocs/development/subversion/wordpress/wp-admin/admin-functions.php	(revision 3535)
+++ C:/Xampp/htdocs/development/subversion/wordpress/wp-admin/admin-functions.php	(working copy)
@@ -574,7 +574,7 @@
 			$result[$cat]['children'] = get_nested_categories($default, $cat);
 			$result[$cat]['cat_ID'] = $cat;
 			$result[$cat]['checked'] = in_array($cat, $checked_categories);
-			$result[$cat]['cat_name'] = get_the_category_by_ID($cat);
+			$result[$cat]['cat_name'] = apply_filters('list_cats', get_the_category_by_ID($cat), $cat);
 		}
 	}