Same vertex faces and huge objects

[TacogentP3D]

If an object has a face with at least 2 vertices with the same coordinates, that face does not affect the object's center of mass and inertia vectors, but does affect polylines
The currenly used method of slicing the object into 12 slices checks for vertices within 0.15 units from the slice plane, so if the object is really big, none of its vertices will intersect with any of the slices, grid2dv3a fixes this
The miner is using the reversed mining method, first finding a combination of polylines and then constructing an object from them, to do this it's first generating a normal random object and scaling it up until none of its vertices intersect with any of the 12 slice planes, then adds the polyline points as same vertex faces since they don't affect the object's rotation, the scaled up random object does not affect the hash, it just makes the object look normal
A possible fix is to discard any such faces and start using grid2dv3a's slicing algorithm