Cursor jumps after disabling current format

[juanedi]

Steps for Reproduction

Using a codepen to simplify setup but you can easily verify this in the demo editor in https://quilljs.com/ too.

1. Visit this codepen: https://codepen.io/Juan-Edi/pen/zYVXMrV
2. Place your cursor in the middle of the bold text
3. Disable the bold format (either by pressing the toolbar button or with the keyboard shortcut)
4. Press the right arrow key

Expected behavior:

Cursor should move one character to the right.

Actual behavior:

Cursor jumps to the end of the line.

Platforms:

Tested on macOS using the latest versions of Chrome (128.0.6613.120), Safari (17.5) and Firefox (127.0.2).

Version:

2.0.2