Fixed curve baking, now always start at origin point

(cherry picked from commit 08b93da28a)

scene/resources/curve.cpp

@@ -543,7 +543,8 @@ void Curve2D::_bake() const {
 	Vector2 pos=points[0].pos;
 	List<Vector2> pointlist;
 
-
+	pointlist.push_back(pos); //start always from origin
+	
 	for(int i=0;i<points.size()-1;i++) {
 
 		float step = 0.1; // at least 10 substeps ought to be enough?