Stuck threads panel button and room list dot after reaction in thread

### Steps to reproduce

1. I sent a threaded message into a room
2. someone reacted to it
3. I am still viewing the thread

### Outcome

#### What did you expect?
no unreads
#### What happened instead?
- the space and room list shows an unread-dot
- the threads panel button in the header shows a grey dot
- the threads list does NOT show a dot
- the dot won't disappear

Reloading the tab (still Element version: b9ea639f9dc1-react-9ea04a539b5a-js-5d233f3863ea Olm version: 3.2.14) cleared it.

### Operating system

arch

### Browser information

firefox 113

### URL for webapp

https://develop.element.io

### Application version

Element version: b9ea639f9dc1-react-9ea04a539b5a-js-5d233f3863ea Olm version: 3.2.14

### Homeserver

matrix.org

### Will you send logs?

Yes