Substring search no longer working for Slash commands

What version of Codex is running?

codex-cli 0.69.0

What subscription do you have?

Enterprise

Which model were you using?

_No response_

What platform is your computer?

MacOS

What issue are you seeing?

Substring search isn't working anymore, making it tougher to easily search across Slash commands. It used to be the case before, I think.

What steps can reproduce the bug?

Uploaded thread: 019b0e0e-8c7b-7a00-81ec-aad00bd76889

What is the expected behavior?

Substring search support (e.g., "/hey" should list also "yayhey").

Additional information

_No response_