http://bugs.winehq.org/show_bug.cgi?id=25620
--- Comment #6 from Jan Hoogenraad jan-winehq@h-i-s.nl 2011-11-20 07:21:10 CST --- Indeed 19. Thus I have misdiagnosed the problem as a re-installation problem.
Apparently, this is a wine/ Nautilus interface problem showing each association instance in the "open with" dialog, rather than one entry per program.
For native linux appluications (gedit, open office etc.) only one entry is shown in the menu,