When switching from e. g. the icons view to the details view, additional information properties like 'Size' and 'Date' are added as default (showing a details-view without details does not make sense as default setting...). This fix assures that the additional information properties are removed again when switching back to the icons view. Only if the user modified the additional information properties by a GUI-interaction (e. g. by adding a 'Type'), this information is persistet also when switching back to the icon-view.