请合并最新代码，优化绑定信息

xm

2020-05-08 6bca8fcd37a48808a0b9c9342fc1be0adddfece6

 ZigbeeApp/Shared/Phone/UserCenter/Device/DoorLock/DoorLockHistoryLogForm.cs

@@ -660,6 +660,10 @@
                    {

                        continue;

                    }

                    if (data.CloudAccountId == null)

                    {

                        data.CloudAccountId = string.Empty;

                    }

                    listLog.Add(data);

                }