Subject: bug#60247: 28.2; incorrect highlighting in HTML+ mode

From: Eli Zaretskii <[email-masked]>
Date: Thu, 22 Dec 2022 09:47:43 +0200

> Date: Thu, 22 Dec 2022 02:51:32 +0100
> From: Vincent Lefevre <[email-masked]>
> 
> 1. Open file.html with "emacs -Q file.html".
> 2. Go to the end of the file.
> 
> In the paragraph starting with
> 
> <p>The first version of unums, formally known as Type I unum, was introduced in Gustafson's book <i>The End of Error</i> as a superset
> 
> everything from "'s book" is highlighted in a different color.

HTML Mode evidently considers what follows the apostrophe to be a
string.  Replacing the literal apostrophe with &#39; fixes the
display.