Release builds embed some families with only a few styles (Poppins
Regular, Italic and Bold), and the first font scan dropped every
installed face of such a family, so an installed Poppins SemiBold or
Medium was never offered. The first scan now keeps the embedded faces,
which still win for the styles they cover, and offers the installed
styles they lack beside them, as a rescan already did.
Closes#1246