[Android] Selecting all text and typing does not begin IME composition until the second letter

[elliotdavies]

Normally on Android, typing a new word starts an IME composition. However, when selecting all text in the Quill editor and typing a new word to replace it, the IME composition does not begin until the second letter is typed.

I observed this when using the Android virtual keyboard on a Samsung Galaxy Tab S9. This behaviour doesn't happen in a non-Quill text field.

Steps to reproduce

• Type text into the editor e.g. Hello
• Select all text
• Type a letter e.g. G
• Expected result: an IME composition begins with G as the first letter (visually, G is underlined)
• Actual result: G is inserted but no IME composition begins (visually, G is not underlined)
• Upon typing a second letter (e.g. o), the composition begins and all of Go is underlined

https://github.com/user-attachments/assets/b3befca6-c172-4b43-91c0-610168dea438