Subject: bug#54797: 27.1; "Old-style backquotes detected!" when there are no backquotes.

From: Lars Ingebrigtsen <[email-masked]>
Date: Sun, 17 Apr 2022 20:02:43 +0200

Bruce Mardle <[email-masked]> writes:

> I've only just read this properly [blush]. (I've just installed Emacs
> 28.1 under Cygwin under Windows 10.): Why DOES evaluating '(, foo)
> give ((\, foo), not (\, foo)? Evaluating '(bar foo) gives (bar foo),
> as expected.

I'm not sure -- it's not particularly valid syntax -- , is only valid
inside backquotes.

Perhaps somebody else knows.