Dmitrij Jafisov

[Attached additional examples of geometries with artefacts.](https://github.com/locationtech/jts/files/8739851/roof-outlines-with-artifacts.txt)

In 100+ cases `PolygonHull#hullByAreaDelta(Geometry geom, double areaDeltaRatio)` with `areaDeltaRatio = 0.0001` removed 99% of narrow gores on outer shell, except one case below. ``` POLYGON ((297.0685363504 85.1680518624, 138.3932126134 -0.0000015365, 171.8055983282...

> This does not remove holes from the input polygons. Is that what you are seeing? Perhaps it should do this. I was expecting holes to be removed from polygons,...