Am Wed, 12 Jul 2017 11:33:22 +0200 schrieb Hans Hagen:

>> (But I don't know if it is really a bug in the font as xelatex with
>> harfbuzz has no problems.)

> I don't know what harfbuzz does but the font definitely does some ssty 
> mapping to rather simple glyphs with no extensible parts so basically 
> it's a font bug. If xetex catches it, find but it's still a bug. Anyway, 
> the previous mail with the patch checks for al three 'missing' fields so 
> this is basically the same issue. If not, let me know.

I will check the code in the evening (and also try out if I can
inject it in luaotfload). 

But on the whole I tried to avoid to work around bugs too much - in
the end one pay with too complicated code. If it is a font bug then
one should try to resolve the issue there. 



-- 
Ulrike Fischer 
http://www.troubleshooting-tex.de/

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