Index: order_sl.cpp
===================================================================
--- order_sl.cpp        (revision 26785)
+++ order_sl.cpp        (working copy)
@@ -302,7 +302,11 @@
         * Furthermore before savegame version 192 the actual content was always corrupt.
         */
        if (!_networking || _network_server || IsSavegameVersionBefore(192)) {
-               _order_backup_pool.CleanPool();
+               /* Note: We cannot use CleanPool since that skips part of the destructor and then leaks Orders */
+               OrderBackup *ob;
+               FOR_ALL_ORDER_BACKUPS(ob) {
+                       delete ob;
+               }
        }
 }