Yelp in Dapper: boxes for em-space

["Alexander Kirillov" <shurik179 gmail com>]

I decided to try latest pre-relaease of Ubuntu Dapper (Flight 4 live
CD), and to my dismay, Yelp in this release shows a lot of 'missing
character" boxes - for example, between any section number and section
title there is a box instead of missing unicode symbol U+2002 or
U+2003 (en-space and em-space respectively). Looks really bad.

Before I report it to bugzilla,
 - can anyone check if the same problem appears in GNOME 2.13.x on
other distros?
 - do default Yelp stylesheets produce these unicode symbols? Or was
it Ubuntu customization?

- is htere any real need for them? Clearly, sometimes en space looks
better that a usual space - but given this rendering problem, maybe it
would be better to replace them all by usual old-fashoined space?

Sasha