bug#71429: Inconsistent y-or-n-p prompt behavior in Emacs Lisp

[Stefan Monnier]

> Or maybe you are saying that a Lisp program that binds
> search-spaces-regexp has a bug, because Lisp code is not supposed to
> bind that?

That, yes. Binding it should be done carefully only at those places
where the contained Lisp code is performing a search whose regexp was
built from interactive user input.

If you let bind that var and then call arbitrary code, I'd
expect breakage.


        Stefan