Bug in polygon tracing with intersect

[asinghvi17]

import GeometryOps as GO
import GeoInterfaceMakie
using GLMakie

w1 = 0.15
w2 = 0.3
h = 1

reg1 = Makie.Polygon([
	Point(w1,0),
	Point(w2,h),
	Point(-w2,h),
	Point(-w1,0),
	Point(-w2,-h),
	Point(w2,-h),
])

reg2 = Makie.Polygon([
	Point(0,w1),
	Point(h,w2),
	Point(h,-w2),
	Point(0,-w1),
	Point(-h,-w2),
	Point(-h,w2),
])

p3 = GO.intersection(reg1, reg2; target=GO.PolygonTrait())

with_theme(Poly=(;alpha=0.5)) do
	poly(reg1, label="Reg 1")
	poly!(reg2, label="Reg 2")
	poly!(p3, label="Intersection")
	axislegend()
	current_figure()
end

There's clearly a tracing issue here...will have to take a look at the a and b lists

cc @aplavin

[asinghvi17]

Nevermind, the outer ring was not closed. Need to fix that!