in kubuntu desktop when you make a search in ubuntu 12.04 and i think also in 11.10 appear at least most of time if not all the times in the results of the menu bar search twice the application.
and for example if you type libreoffice appear 2 times libreoffice writer,draw,calc,impress .. math only appear 1 time and this for other applications also happens.
so the question is why in menu bar of kde when you type for an application at least some results appear twice?