Eli Zaretskii <eliz@gnu.org> writes:

>> Is something making read-char-choice bug out, but in a way that's caught
>> by Tramp (or something else), so we just continue?  debug-on-signal
>> doesn't help, either.
>
> Could be an error or a throw?

`debug-on-signal' set to t doesn't reveal anything, so it must be a
throw, I think?

It has something to do with the new way that `read-char-choice' uses the
minibuffer.

If I set `read-char-choice-use-read-key' to t, then I get: