bug#37521: breakage in emacs 26.3 + nxml

[Rolf Ade <rolf@pointsman.de>]

Allin Cottrell <cottrell@wfu.edu> writes:
> There's a broken interaction between unescaped '>' (ASCII 62) and
> apostrophe (ASCII 39) when editing an XML file in nxml mode in emacs
> 26.3. (Version 26.2 was OK.)
>
> At the first apostrophe following an unescaped '>', the font color
> switches to "within delimiters" mode, and, depending on the context,
> certain nxml editing commands stop working properly.
>
> Here are two little examples. The first just shows the unwanted change
> in face:
>
> <?xml version="1.0"?>
>
> <p>Here's some text, including the inequality 3 > 2. And here's
> what happens in following text once an apostrophe comes along.
> </p>
>
> The second example shows what happens when the apostrophe is inside a
> tag. If you delete the trailing "</p>" below, then try to insert it
> again via the shortcut C-c C-f, it's "</tt>" that gets inserted
> instead:
>
> <?xml version="1.0"?>
>
> <p>Here's some text, including the inequality 3 > 2. And here is an
> apostrophe inside a tag: <tt>'</tt>. Plus some following text and
> so on.</p>

Current master

commit fd6f4bf648c5a4417eb591a8c54b87c7c60de154
Author: Nikolaus Rath <Nikolaus@rath.org>
Date:   Fri Sep 27 01:39:13 2019 +0200

works like 26.2 (that is: correct).