bug#43866: 26.3; italian postfix additions

[Eli Zaretskii]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: juri@linkov.net,  43866@debbugs.gnu.org
> Date: Wed, 21 Oct 2020 16:40:47 +0200
> 
>     Eli> The character composition happens only on display, the buffer or
>     Eli> string still have two codepoints.
> 
> Yes. But when looking at the code it would look like a single glyph,
> which would be confusing.

We could have a comment about that.  IMO, using the ?\N{NAME} for that
is gross.