优化订单结束时间戳数据

OTWebSocket.API/Services/OrderTracer.cs

@@ -214,7 +214,7 @@ namespace OTWebSocket.API.Services
                                                         //仅在以下状态下才更新mongodb持久化的数据
                                                         if (cacheOrder.IsFinished())
                                                         {
-                                                            cacheOrder.FinishTimestamp = exchangeOrder.OTUpdateTimestamp;
+                                                            cacheOrder.FinishTimestamp = cacheOrder.UpdateTimestamp;
                                                             cacheOrder.Comment = "需要持久化[备删]";
                                                             needDelete = true;
                                                             await _redisService.SetLiveOrder(cacheOrder, true);