Post #3220902

@amapanda have you seen artefacts like this before with lump-ways-down before? Happens when I try `osm-lump-ways-down -i belgium-latest.osm.pbf --grouped-ends grouped-ends-be.geojson -f waterway=river,stream,canal,ditch --flow-follows-tag name --ends-tag name` . Dropping the canals removes the issue. My guess is that it has to do with those pesky canals introducing infinite loops.