unity upgrade script doesn't reset the font settings

[Marco Trevisan (Treviño)]

When upgrading ubuntu 10.04 to 12.04 unity correctly imported some old desktop settings, but didn't reset these *system* parameters, causing some visual inconsistencies with wanted design:

  - All the font settings were not updated to use the ubuntu font (and default hinting).

The unity script should take care of resetting the relevant gsettings keys:
 org.gnome.desktop.interface:
  document-font-name
  font-name
  monospace-font-name

[Sebastien Bacher (seb128)]

seems like a gsettings-desktop-schemas thing and shouldn't be specific to unity, the same way we don't migrate the theme we should maybe not migrate those settings

[Marco Trevisan (Treviño) (3v1n0)]

The way it's unity related imho, is that unity should take care of setting the values it needs to shine ;)

[Paul Sladen (sladen)]

Ideally if a key has been left unset (so fall-through to supplied system default) it should be left unset (and still fall-through to the new supplied system default).

If the user has explicitly _set_ a key to their own choosing, that _set_ key should be left as-is (masking the new system default).

Which combination exactly is happening here that shouldn't be?