fix crash for max zoom 12 or more

[aharonamir]

When selecting max_zoom of 12 or more
we get odd number of intersections, which causes exception
when trying to read index i+1 which is out of the array bounds

[morganherlocker]

Do you have a test case for this @aharonamir? I have never had issues with max_zoom >= 12 myself, so I'm wondering if there is a geometry issue at play here?

[aharonamir]

var poly = JSON.parse(fs.readFileSync(config.file));
var limits = {
min_zoom: 10, // or 12
max_zoom: 12
};
const tiles = cover.tiles(poly.geometry, limits);
The File:

fremont-geojson.json.zip