GFileInfo fails to find x-large and xx-large thumbnail paths

Affected version

• Nightly flatpak: Can't test it because I don't use flatpak
• Other: latest master branch

Steps to reproduce

1. Hidpi monitor
2. open nautilus with folder contains videos
3. it takes forever to generate the thumbnails

Current behavior

it takes forever to generate the thumbnails

Expected behavior

thumnails generated normally

I found this bug introduced by nautilus@278435e3 through git bisect. Revert this commit fix it for me. You can also reproduce it by changing

thumbnail_factory = gnome_desktop_thumbnail_factory_new (GNOME_DESKTOP_THUMBNAIL_SIZE_LARGE);

to

thumbnail_factory = gnome_desktop_thumbnail_factory_new (GNOME_DESKTOP_THUMBNAIL_SIZE_XLARGE);