Removing text when formatting enabled

### Steps to reproduce

1. Open Element Nightly
2. Enable "Rich text editor" in the Labs
3. Enable "Show formatting" near the input field
4. Type any text
5. Try to remove it by pressing "Control + Backspace"

### Outcome

#### What did you expect?
Normal removing, like without "Show formatting"

#### What happened instead?
Input field is not updating. The text is removed only after changes (Type a letter, press backspace, etc)

### Operating system

Windows

### Application version

Element Nightly version: 0.0.1-nightly.2023112501, Olm 3.2.15

### How did you install the app?

From https://element.io/download

### Homeserver

matrix.org

### Will you send logs?

No