ok, this might be a svn specific bug, but i gut this when upgrading to latest svn. do you get the same?
svn up megaglest/
svn: Error converting entry in directory 'megaglest/data/glest_game/scenarios/storming' to UTF-8
svn: Can't convert string from native encoding to 'UTF-8':
svn: storming_espa?\195?\177ol.lng