[PATCH] Auto Detection does not work for Poppins

The attached  reproducer XLST-FO (poppins.fo) has sample text with font weights from 100 - 900.
Although the font-weights 300 and 100 are substituted with the font-weight 200 the following font-weight 400 is being rendered much thinner.

Snippet from output:
...
WARNING: Font "Poppins,normal,300" not found. Substituting with "Poppins,normal,200".
Jan 05, 2022 3:00:31 PM org.apache.fop.apps.FOUserAgent processEvent
WARNING: Font "Poppins,normal,100" not found. Substituting with "Poppins,normal,200".
Jan 05, 2022 3:00:31 PM org.apache.fop.apps.FOUserAgent processEvent
WARNING: Font "Poppins,normal,900" not found. Substituting with "Poppins,normal,800".

(Also the normal italic seems to be wrong, too. I'm not sure if it's correlated to this issue or another.)