why is mz_is_building: false in tiles?

[nvkelso]

I thought that was only an internal server processing step, not intended for export?

Example:

http://vector.dev.mapzen.com/osm/all/15/5235/12671.topojson?api_key=vector-tiles-HqUVidw

[nvkelso]

eg:

landuse_labels: {
type: "GeometryCollection",
geometries: [
{
type: "Point",
properties: {
label_placement: "yes",
kind: "grass",
name: "Maloney Field",
area: 16376,
mz_is_building: false,
min_zoom: 10.2564,
source: "openstreetmap.org",
sport: "baseball",
id: -4792969,
osm_relation: true
},
coordinates: [
413,
774
]
},

[zerebubuth]

After tilezen/TileStache#84 and #351, now I'm not getting that internal property any more:

  "landuse_labels": {
    "type": "GeometryCollection",
    "geometries": [
      {
        "type": "Point",
        "properties": {
          "label_placement": "yes",
          "kind": "grass",
          "name": "Maloney Field",
          "area": 16376,
          "source": "openstreetmap.org",
          "min_zoom": 10.2564,
          "sport": "baseball",
          "id": -4792969,
          "osm_relation": true
        },
        "coordinates": [
          413,
          774
        ]
      },

[nvkelso]

Verified.