bug#34035: 26.1; Arabic shadda-kasrah renders incorrectly

[Eli Zaretskii]

> From: "Basil L. Contovounesios" <contovob@tcd.ie>
> Date: Wed, 19 Aug 2020 11:48:20 +0100
> Cc: 34035@debbugs.gnu.org, Stephen Berman <stephen.berman@gmx.net>,
>  Peter <craven@gmx.net>
> 
> > Does that mean that this is a bug/missing feature in the fonts, and not
> > in Emacs?
> 
> Sounds like it, though I'm curious whether Eli's concerns in
> https://debbugs.gnu.org/34035#35 still apply.

You mean, the order of showing the glyphs in the grapheme cluster?  I
eventually convinced myself that this is a side effect of how HarfBuzz
works with R2L compositions, not a bug.