Last modified: 2009-07-20 03:54:50 UTC
for example http://en.wikipedia.org/w/index.php?title=Wikipedia_talk:Tools/Navigation_popups&action=history&feed=rss the title contains an   which have been escaped to   and thus it is displayed rather verbatim and wrongly.
Seems ok on trunk, though I'm not too sure why.
The current proposed fix for this is r51453.
Seems fixed; link looks fine.