[Style] style plugin assignment is not working properly

I added a screenshot to further illustrate the issue:

Could you record a screencast demonstrating the problem? That'd really help! 🙏

Hi @wim-leer,

I added a screencast illustrating the problem - it's mainly a usability issue in my eyes.

The style config used in the screencast is the same as above:

```
a.btn.btn-primary|Primary Button
a.btn.btn-outline-primary|Primary Outline Button
a.btn.btn-secondary|Secondary Button
```

Thx a lot!
Andreas

AFAICT this was a duplicate of 🐛 [upstream] Add style to anchor leads to unusable behavior Postponed , which was fixed by 📌 Update CKEditor 5 to 40.2.0 RTBC . Can you still reproduce this on Drupal 10.2? 🙏