Subject: bug#52394: 27.2; Isearch with char folding enabled doesn’t match equivalent strings

From: Eli Zaretskii <[email-masked]>
Date: Sun, 12 Dec 2021 20:59:58 +0200

> From: Juri Linkov <[email-masked]>
> Cc: [email-masked],  [email-masked]
> Date: Sun, 12 Dec 2021 20:54:51 +0200
> 
> But doesn't this line
> 
>   "when this variable is customized to non-nil"
> 
> imply that the default is nil?

No, it doesn't.

> Or maybe the nil default value should be mentioned in the doc
> string?

That would help.  It would also help to make the default value nil,
literally, not via some defconst.  Why do we need to obfuscate the
source code?