Subject: Re: bug#60066: 30.0.50; whitespace-mode modifies buffer

From: Eli Zaretskii <[email-masked]>
Date: Wed, 14 Dec 2022 19:02:09 +0200

> From: Bastian Beranek <[email-masked]>
> Date: Wed, 14 Dec 2022 17:53:54 +0100
> Cc: Richard Hansen <[email-masked]>, [email-masked]
> 
> It might be worth pointing out that there are no actual differences
> between the buffer and its on-disk counterpart, but still emacs
> considers the buffer to be modified, as if a change was made and
> reverted (but not through undo).

That's most probably because whitespace.el puts text properties on
some buffer text.