Wrong room icon in notification

### Steps to reproduce

1. Receive a notification from a room
2. Notice the icon is incorrect

### Outcome

#### What did you expect?
The room in question did not have an image set, expected to see the single letter placeholder

#### What happened instead?
an icon from a different room was displayed

I've been unable to reproduce locally, it may have been a system bug as Android 12's notifications can play up sometimes~ Raising an issue to track more occurrences.

### Your phone model

_No response_

### Operating system version

_No response_

### Application version and app store

1.4.4-dev

### Homeserver

_No response_

### Will you send logs?

No

No source file or test is named. Start by examining the Android notification flow and reproducing the reported case if possible; done means a room without an image shows its single-letter placeholder rather than an icon from another room.

Written by the indexing model from the issue text.