Codex crashes when non-ASCII (Unicode) characters are typed

What version of Codex is running?

codex-cli 0.2.0

Which model were you using?

qwen3

What platform is your computer?

Linux 6.6.87.2-microsoft-standard-WSL2 x86_64 x86_64

What steps can reproduce the bug?

At the input section, type any non-ASCII or Unicode character.

Examples: Such as, _but is not limited to_, Turkish characters (İ, ı, ş, ü, ğ, ö, ç), Chinese characters (e.g., 诶), or Russian Cyrillic characters (e.g., Й, Ц, У).

What is the expected behavior?

Codex should accept and correctly process typing containing non-ASCII (Unicode) characters without crashing. It should display these characters as entered.

What do you see instead?

The application crashes immediately upon by typing any non-ASCII or Unicode character.

Additional information

_No response_