Different emoji font resolution in Freetype on Windows

https://codereview.qt-project.org/c/qt/qtbase/+/609056 makes it possible to load COLRv0 fonts using Freetype, but it revealed a strange discrepancy compared to the native font backend.

In a vanilla app showing emojis it works fine, but if I load the TwemojiCOLRv0.ttf font, this will be used for any emoji, even if I manually set "Segoe UI Emoji" as the font family.

When using the default DirectWrite backend this works fine.