App icon badge remains after all messages are read in Element-x-iOS

[m4h4]

Steps to reproduce

I am experiencing an issue where the app icon badge on my iOS device continues to display a "1" even after all messages in the Element app have been read and the badge should disappear. This occurs consistently across multiple conversations and devices.

1. Open the Element app on an iOS device.
2. Receive a new message.
3. Read the message.
4. Observe that the app icon badge still shows a "1".
5. Try closing and reopening the app.
6. The badge persists.
   

Outcome

What did you expect?

The app icon badge should disappear once all messages in a conversation have been read.

What happened instead?

The app icon badge persisted.

Your phone model

iPhone 15 Pro

Operating system version

18.1

Application version

1.9.5 (136)

Homeserver

fairydust.space

Will you send logs?

No

[pixlwave]

Duplicate of #3151.

[m4h4]

I'm not sure that this is the same bug. #3151 is about an unreliable count, but in this bug the badge always shows the right count +1.