[mkgmap-dev] mkgmap dropping ways on multipolygon boundary "outer"

Have a look here, wherever the boundaries use the same way as the ways, the ways get dropped, even if not rendering the boundaries at all (removing any reference to boundary from the style-file). Is this maybe a geofabrik error, or some error in mkgmap multipolygon handling? I have noticed many (all that I checked) mkgmap maps suffer from missing roads in this example. (anyhow I don't render boundaries

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http://www.openstreetmap.org/?lat=48.03113&lon=16.88459&zoom=16&layers=B000F... Seems to be a bug in the Multipolygon Code.