Bug Report: Chinese characters disappear after backspacing.

What version of Codex is running?

0.47.0

What subscription do you have?

pro

Which model were you using?

_No response_

What platform is your computer?

Ubuntu 22.04.5 LTS （Remote）

What issue are you seeing?

Chinese characters disappear after backspacing.

What steps can reproduce the bug?

1. SSH to connect to a remote machine
2. Input 4 Chinese characters in one keystroke (e.g., “测试输入”).
3. Press the backspace key.
4. Continue typing more characters.

https://github.com/user-attachments/assets/eb274c9e-6c93-4d56-b0c5-f004ccb49944

What is the expected behavior?

_No response_

Additional information

_No response_