Unified exec broken on linux since 0.57.0

What version of Codex is running?

codex-cli 0.57.0

What subscription do you have?

Pro

Which model were you using?

any

What platform is your computer?

Linux 6.17.5-cachyos1.lto.fc43.x86_64 x86_64 unknown

What issue are you seeing?

When feature.unified_exec is enabled all execution commands fail (since alpha.5 I believe) with

error: unexpected argument '--sandbox-policy-cwd' found

What steps can reproduce the bug?

set feature.unified_exec to true
ask model to run any command

What is the expected behavior?

_No response_

Additional information

_No response_