bug#66117: 30.0.50; `find-buffer-visiting' is slow when opening large number of buffers

[Dmitry Gutov]

On 14/12/2023 22:57, Stefan Monnier wrote:
> But the bugs I recall went in the direction "user setting unexpectedly
> affecting internal searches" rather than "let-binding unexpected
> affecting user searches".
>
> I must admit that I can't point to concrete examples of the kind of bugs
> "I recall".

You just pointed at one in company-dabbrev several messages ago.

Nobody ever reported this, though, so I have to assume that "user 
settings" for case-fold-search are rare enough.