3.1.1.10.4 Out-of-Order Change Order
A change order is marked out-of-order to indicate that there was at least one more recent change order that was propagated before this change order. Every member that receives a change order marked out-of-order accepts it even though the member's version vector indicates that a more recent change has already been received. When a change order is retried by a member after a later change order for a different file is received, the retried change order is marked out-of-order and continues to be propagated to downstream partners. If a newer change order is received for the same file as the retried change order, the retried change order is out of date and is NOT propagated.
Out-of-order change orders are identified by the CO_FLAG_OUT_OF_ORDER flag inside the CHANGE_ORDER_COMMAND structure Flags field.