Please describe the problem:
When we display some UTF-8 encoded string containing some space variants (e.g.
U+2009 THIN SPACE) in some GTK+ widget, only a box containing the Unicode number
of the character appears, whereas one may expect seeing only blank. One may
think that a good font should contain blank glyphs for these Unicode numbers so
that Pango and others programs would display it properly, but with this
definition, most font I know are bad. So if the glyphs are not defined in the
font, one may think that Pango could display only blank for those space variants
(the Unicode standard has such characters in the range U+2000--U+200B at least).

Steps to reproduce:


Actual results:


Expected results:


Does this happen every time?


Other information: