### Godot version

4.0 beta 10

### System information

Windows 10, Vulkan

### Issue description

While the fishbone pattern is visible, the points are not. (Invisible) points can be added to a path and deleted from it, but they can't be moved in the editor viewport, only via inspector properties.
I haven't used 4.9b, but I confirmed the point handles are visible in 4.8b on my system (same file).

### Steps to reproduce

Make a Path3d. Add points via Inspector. Fail to see point handles in the viewport.

### Minimal reproduction project

n/a
if (read_only) {
		return;
	}
	const Ref<InputEventMouseMotion> mm = p_ev;
	if (mm.is_valid()) {
		bool expand_was_hovered = expand_hovered;
		expand_hovered = expand_rect.has_point(mm->get_position());
		if (expand_hovered != expand_was_hovered) {
			queue_redraw();
		}
		if (!expand_hovered) {
			for (int i = 0; i < flag_rects.size(); i++) {
				if (flag_rects[i].has_point(mm->get_position())) {
					
					hovered_index = i;
					queue_redraw();
					return;
				}
			}
		}
		
		if (hovered_index != -1) {
			hovered_index = -1;
			queue_redraw();
		}