Created Unassigned: Incorrect selection of polygons with Holes [63638]

Found a bug in the PartRange class under the method of IsHole.

This:

if (i < EndIndex)
{
x2 = Vertices[(i + 1) * 2];
y2 = Vertices[(i + 1) * 2 + 1];
}
else
{
x2 = Vertices[StartIndex];
y2 = Vertices[StartIndex + 1];
}

should be changed to:

if (i < EndIndex) {
x2 = Vertices((i + 1) * 2);
y2 = Vertices((i + 1) * 2 + 1);
} else {
x2 = Vertices(StartIndex * 2);
y2 = Vertices(StartIndex * 2 + 1);
}

I have attached a shapefile to show you the problem. Try clicking on the center shape and you will notice that both shapes get selected even though the outside shape is a donut.