Description of problem:
All of detailed information is available on my post at the fonts list:
binding="same" in the fontconfig config file prevents to apply the rule for the
language only properly. As a result, fonts is used for non-targetted languages
and it may gives different look and feel in some cases.
I'd propose to get rid of binding="same" from:
I am wondering for thai-scalable these .conf seem to be for
specific font substitutions, so is the use of binding="same"
Ah, you're right. the cheker has a bug. you don't need to take any actions on this package.