^y yank fails - I lose data when I use ^W ^K ^U

What version of Codex is running?

_No response_

Which model were you using?

_No response_

What platform is your computer?

_No response_

What steps can reproduce the bug?

type text, use ^A to go to beginning of line, then ^K to cut to end of line. use ^Y (yank) to paste the cut.

What is the expected behavior?

^Y yank should paste the buffer from ^W and ^K ^U.

What do you see instead?

instead, the buffer is lost when ^W ^K ^U are used.

Additional information

yank is standard behavior when ^W ^K ^U are available - I can use them right now editing this form. if there's no ^Y, the other 3 are dangerous - I'd argue they should be disabled to prevent the loss.