### 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 (!add_meta_dialog) {
		add_meta_dialog = memnew(ConfirmationDialog);
		VBoxContainer *vbc = memnew(VBoxContainer);
		add_meta_dialog->add_child(vbc);
		HBoxContainer *hbc = memnew(HBoxContainer);
		vbc->add_child(hbc);
		hbc->add_child(memnew(Label(TTR("Name:"))));
		add_meta_name = memnew(LineEdit);
		add_meta_name->set_custom_minimum_size(Size2(200 * EDSCALE, 1));
		hbc->add_child(add_meta_name);
		hbc->add_child(memnew(Label(TTR("Type:"))));
		add_meta_type = memnew(OptionButton);
		for (int i = 0; i < Variant::VARIANT_MAX; i++) {
			if (i == Variant::NIL || i == Variant::RID || i == Variant::CALLABLE || i == Variant::SIGNAL) {
				continue; 
			}
			String type = i == Variant::OBJECT ? String("Resource") : Variant::get_type_name(Variant::Type(i));
			add_meta_type->add_icon_item(get_theme_icon(type, "EditorIcons"), type, i);
		}
		hbc->add_child(add_meta_type);
		add_meta_dialog->set_ok_button_text(TTR("Add"));
		add_child(add_meta_dialog);
		add_meta_dialog->register_text_enter(add_meta_name);
		add_meta_dialog->connect("confirmed", callable_mp(this, &EditorInspector::_add_meta_confirm));