Misattributed hole with intersection

[davebrent]

While performing intersections on some polygons I am running into cases where the holes of some polygons are being assigned to different ones on output.

I checked against the JavaScript version that the crate is based on and it has the same problem. So I've created an issue over there as well.

The data for one of these cases can be found in this gist.

[untoldwind]

Once/if there is a fix, I will backport it.

[bluenote10]

Oh forgot the link this issue -- this is actually solved in #10 for the Rust version already (test case exists).