Qt Quick: Text Item, unable to mix different fonts loaded with FontLoader (Windows only)

I've attached a application sample containing a qml form that loads 2 fonts with a Fontloader. The window has a ColumnLayout that contains 2 Text items. For some reason, the font of the first Text Item overrides the fonts of all remaining text items (in the example 1).

I've seen this issue on Windows but not Linux.

As a screen says more than a thousand words... 

The expected result should look like, on linux:

qt_quick_font_text_bug.tar.gz