I'm making a shape in Affinity Designer using the pen tool, tweaking bezier curves, etc.
I have a shape that overlaps, meaning curves back and crosses over itself, so there's an intersection. The default behavior for Affinity Designer is to create a subtractive effect, whereby the shape has no fill in the intersection.
I'd like the shape I've created to be filled in, even in the intersection. How do I make Affinity do this?