[Bug] Issue with Korean Input: Loss of TextEditingRange When Alternating Consonant and Vowel

[kyungilcho]

Bug Description

When typing in Korean, alternating between consonants and vowels, the text editor seems to lose TextEditingRange after the input of the first two characters. This results in incorrect character formation. Specifically, attempting to write a sequence of the same character "하" four times instead results in "하하ㅎㅏㅎㅏ".

Thank you for looking into this matter. I look forward to a resolution that will enhance the typing experience for Korean language users.

How to Reproduce

Steps to Reproduce

1. Open the text editor.
2. Switch the input method to Korean.
3. Try typing "하하하하" by alternating input between consonants and vowels (i.e., type "ㅎ", then "ㅏ" four times in a sequence).
4. Observe that the input is incorrectly registered as "하하ㅎㅏㅎㅏ" instead of "하하하하".

Expected Behavior

Expected Behavior

The editor should accurately reflect the Korean input without losing the TextEditingRange, allowing for the correct formation of characters. Typing "ㅎ" followed by "ㅏ" four times in succession should result in "하하하하".

Actual Behavior

After typing the first two characters correctly as "하하", the editor loses track of the TextEditingRange. Subsequent inputs of "ㅎ" and "ㅏ" are not combined into "하", but are instead added separately, resulting in "하하ㅎㅏㅎㅏ".

Operating System

Android

AppFlowy Editor Version(s)

2.3.3

Screenshots

https://github.com/AppFlowy-IO/appflowy-editor/assets/87962825/f6b0023f-be99-4ca5-98c0-3ac1d603fb40

Additional Context

Additional Information

• This issue seems to be specific to the handling of Korean input, particularly when alternating between consonants and vowels.

[kyungilcho]

new version does not fix this issue at all.

https://github.com/user-attachments/assets/5cddc7be-7b68-4dc0-ba33-173d252e73a7

galaxy S20

appflowy editor versions: 3.1.0

[kyungilcho]

I think that my PR was not a bad choice... May I re-create the pr after applying updated code?