[BUG] There is a BUG in burning after reading

[guoyafei92]

OpenIM Server Version

最新版本

Operating System and CPU Architecture

Linux (AMD)

Deployment Method

Source Code Deployment

Bug Description and Steps to Reproduce

感谢开源，是我用过最好的即时通讯，给开发者点赞。

BUG:
对任意好友开启阅后即焚（任意倒计时），对方阅读以后开始计时焚毁，但是一旦切换好友对话框或者后退再回来还没计时结束，对话框内的消息就已经没了（双方都是如此），但是在好友列表中依旧存在最后一个消息记录（双方都是如此）。

H5和WEB都是如此，应用程序没有测试，但是我测试TOB版本没有这个问题，但是TOB不能视频会议。

Screenshots Link

No response

[OpenIM-Robot]

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[Bloomingg]

The current design is like this. The message is destroyed when you exit the current session or the countdown ends.