[OSM-dev] Strange Mapnik rendering

[Maarten Deen]

Is there an explanation why Mapnik renders the unclassified road on top of
the primary road in this example?
<http://www.openstreetmap.org/?lat=51.35217&lon=6.01257&zoom=17&layers=B000FTF>

I tried to hint to Mapnik that the unclassified road should not be
rendered over the primary by adding a layer=-1, but that didn't help. The
roads are on the same level.

Regards,
Maarten