bug#45619: 28.0.50; pcase-let on MacOS doesn't work

[Lars Ingebrigtsen]

Michael Heerdegen <michael_heerdegen@web.de> writes:

>> (pcase-let ((`(,default-directory) '( "/tmp/")))
>>     (call-interactively 'find-file))
>>
>> Expected behavior: Find file in "/tmp/"
>> Observed behavior: Find file in "~"
>
> AFAICT the issue here is that `pcase-let' always creates lexically
> scoped bindings, even for special variables.  That can be surprising.
>
> @Stefan, what can we do?  Document better?  Add compiler warnings?  Or
> is it possible to "fix" this?

I tried the form in Emacs 29, and I got the expected behaviour here.  So
was this fixed since this bug was reported?  (But I only tested on Debian.)

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