[mkgmap-dev] type=multipolygon relations

Hi all, from time to time I stumble over mp like this: http://www.openstreetmap.org/relation/3318482 It contains way 135320941 three times. In other cases inner ways are duplicated, and that really causes trouble when calculating the areas. I wonder why we don't remove duplicate entries when we process the members of mp relations. Is there any possible constellation where this would cause trouble? Gerd