My assumption is, that in this particular case the geometry is used in the rendering process (hence a simplified version).
It could be checked if an expression used in the rendering process requires the geometry (or $area and maybe others?) just the way attributes are only requested for rendering if they are used in an expression. _______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
