Updated polygon test with double-specification of start vertex

testdata/scad/features/polygon-tests.scad

@@ -13,5 +13,6 @@ translate([2,-2,0]) polygon([[0,0], [1,0], [0.8,0.5], [1,1], [0,1]]);
 points = [[0,0], [0.5,-0.2], [1,0], [1.2,0.5], [1,1], [0.5,1.2], [0,1], [-0.2,0.5]];
 translate([-2,0,0]) polygon(points);
 translate([-2,-2,0]) polygon(points=points, paths=[[0,1,2,3], [4,5,6,7]]);
+translate([2,-4,0]) polygon([[0,0], [1,0], [1,1], [0,0]]);
 
 // FIXME: convexity

tests/regression/dumptest/polygon-tests-expected.txt

@@ -29,4 +29,7 @@
 	multmatrix([[1, 0, 0, -2], [0, 1, 0, -2], [0, 0, 1, 0], [0, 0, 0, 1]]) {
 		polygon(points = [[0, 0], [0.5, -0.2], [1, 0], [1.2, 0.5], [1, 1], [0.5, 1.2], [0, 1], [-0.2, 0.5]], paths = [[0, 1, 2, 3], [4, 5, 6, 7]], convexity = 1);
 	}
+	multmatrix([[1, 0, 0, 2], [0, 1, 0, -4], [0, 0, 1, 0], [0, 0, 0, 1]]) {
+		polygon(points = [[0, 0], [1, 0], [1, 1], [0, 0]], paths = undef, convexity = 1);
+	}