bug#35721: 27.0.50; Strange Arabic shaping behavior

[Khaled Hosny]

On Thu, May 16, 2019 at 05:08:47PM +0300, Eli Zaretskii wrote:
> The main point of this bug report is about the other part, though: how
> sheen should be displayed when using DejaVu Sans Mono.

I don’t think there is a right answer here. Glyphs can have -ve right or
left side bearings, so if the graphics context has no room on the either
side then I think it is expected that the glyph would be truncated. This
is not Arabic specific (e.g. italic f often have -ve right side
bearing, in variable width fonts at least).