Hi,
just corrected the template of the locale-specific overrides rule at
https://fedoraproject.org/wiki/Fontconfig_packaging_tips
There are no changes of the behavior though, in next release of fontconfig, it will warns
if <test> elements contains multiple values, this change has been made because of
the unreliable/non-intuitive behavior. for alternatives, if one wants to test the lang,
you can use compare="contains" instead. otherwise you'll need to put more
<match>es then.
I'll post the list of the packages here later what packages needs to be updated for
that and also will file a bug too.
Thanks,
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Akira TAGOH