Failed to load timeline position error dialog shown twice and blank chat triggered by pin that a user has no access to

### Steps to reproduce

1. There is a chat room with messages and pins already in it.
2. A new user is invited to this chat room and joins
3. One of the pins to a message which the new user has no access to is unpinned
4. The new user clicks on the "a message" link in the chat history its "x unpinned **a message**
from this room." event.

### Outcome

#### What did you expect?
- An error dialog like the one shown "Failed to load timeline position
Tried to load a specific point in this room's timeline, but you do not have permission to view the message in question."

#### What happened instead?
The expected dialog is shown, but:
- The chat goes blank behind it
- Clicking ok on the error dialog shows a loading icon in the chat, after which the same dialog is opened a second time
- Closing this second error dialog leaves the user on a blank chat room
- The same outcome with different trigger is mentioned on issue: https://github.com/element-hq/element-web/issues/20927

### Operating system

_No response_

### Browser information

_No response_

### URL for webapp

_No response_

### Application version

_No response_

### Homeserver

_No response_

### Will you send logs?

No