has_empty - update logic to work with the current polygon model (FIXME: the naming is confusing to say the least)
has_empty - update logic to work with the current polygon model (FIXME: the naming is confusing to say the least)

lightmare/mapnik,mapnik/mapnik,lightmare/mapnik,tomhughes/mapnik,naturalatlas/mapnik,lightmare/mapnik,lightmare/mapnik,mapnik/mapnik,naturalatlas/mapnik,tomhughes/mapnik,mapnik/mapnik,tomhughes/mapnik,mapnik/mapnik,tomhughes/mapnik,naturalatlas/mapnik,naturalatlas/mapnik