bug#52053: 29.0.50; Nonsensical button "C-x C-f" in scratch buffer

[Eli Zaretskii]

> Date: Thu, 25 Nov 2021 22:45:02 +0000
> From: Gregory Heytings <gregory@heytings.org>
> cc: luangruo@yahoo.com, larsi@gnus.org, 52053@debbugs.gnu.org
> 
> Updated patch attached.

Thanks.  This approach is fine by me, but the variable you introduced
should not be internal, and it probably should be called out in NEWS
(in the Lisp section), because I believe the intent was to allow other
callers to use it, even though currently we have only one such caller.