When a==0 -> ???

[yellow-sky]

polytiles/polytiles/polytiles.py

Line 660 in c0a0575

if options.area:

[Zverik]

options.area is an osm id, it cannot be zero.

[yellow-sky]

https://github.com/Zverik/polytiles/blob/master/polytiles/polytiles.py#L585

[Zverik]

Okay, indeed. Will fix this later.