A fix for DELETE with ORDER BY and LIMIT.

How come we do not have a test case for this ??

sql/sql_delete.cc

@@ -126,7 +126,10 @@ int mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds, ORDER *order,
 
     table->io_cache = (IO_CACHE *) my_malloc(sizeof(IO_CACHE),
                                              MYF(MY_FAE | MY_ZEROFILL));
-    if (setup_order(thd, 0, &tables, fields, all_fields, order) ||
+      if (setup_ref_array(thd, &thd->lex.select_lex.ref_pointer_array,
+			all_fields.elements)||
+	  setup_order(thd, thd->lex.select_lex.ref_pointer_array, &tables, 
+		      fields, all_fields, order) ||
 	  !(sortorder=make_unireg_sortorder(order, &length)) ||
 	  (table->found_records = filesort(thd, table, sortorder, length,
 					   (SQL_SELECT *) 0, HA_POS_ERROR,