Cursor misplacement when typing quickly after clicking at the right side of a line

[RoukayaSaied]

Description

When moving the caret (e.g., using arrow keys or clicking at the end of a line) and immediately typing, the inserted text appears at an incorrect position.

This seems like a synchronization issue between selection state and text insertion.

---

Steps to reproduce

1. Open Quill editor (official demo or local instance)
2. Type multiple lines of text
3. Move the cursor using arrow keys (e.g., to the end of a line)
4. Immediately start typing quickly

---

Expected behavior

Text should be inserted at the current caret position.

---

Actual behavior

Text is inserted at a different position than the visible caret (e.g., previous position or wrong offset).

---

Reproducibility

Occurs intermittently but frequently when typing quickly after moving the caret.

---

Environment

• Quill version: 2.0.3
• Browser: (Chrome / Edge )

---

Additional context

This appears similar to known cursor synchronization issues:

• Table functionality is not working in Quill editor #4417 (cursor moves but insertion happens elsewhere)

It may be related to race conditions between selection updates and text-change events.

---

Possible direction

The issue might be caused by:

• selection not being fully updated before text insertion
• async DOM / Delta synchronization
• handling of silent events

---

Demo (I could reproduce it in quill live demo)

quill.webm