Element iOS crashes when opening some chats

### Steps to reproduce

1. I start on the room list
2. I click on one of the group chats

Last chat it happened on is actually Telegram-bridged via Mautrix-Telegram.

### Outcome

#### What did you expect?

A chat should be opened.

#### What happened instead?

The application crashes immediately.

- Cleaning up caches does not work.
- The chat can be opened without issues on Desktop.
- Crashes happen on both my iPad and my iPhone.

Attached the crash log: [crash.log](https://github.com/vector-im/element-ios/files/11012486/crash.log)

### Your phone model

iPhone SE 2

### Operating system version

iOS 16.3.1 (20D67)

### Application version

1.10.5

### Homeserver

Synapse 1.76.0

### Will you send logs?

No