cmd+backspace deletes current line

What version of Codex is running?

0.34.0

Which model were you using?

gpt-5-high

What platform is your computer?

Darwin 24.6.0 arm64 arm

What steps can reproduce the bug?

Type any text into the input box. Try to press cmd+backspace

What is the expected behavior?

1. type any text
2. press cmd+backspace
3. current line is deleted

What do you see instead?

1. type any text
2. press cmd+backspace
3. see that nothing happens

Additional information

_No response_