### 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
for (int i = 0; i < 4; i++) {
		spin[i]->set_read_only(p_read_only);
	}
	for (int i = 0; i < 3; i++) {
		euler[i]->set_read_only(p_read_only);
	}
};
void EditorPropertyQuaternion::_edit_custom_value() {
	if (edit_button->is_pressed()) {
		edit_custom_bc->show();
		for (int i = 0; i < 3; i++) {
			euler[i]->grab_focus();
		}
	} else {
		edit_custom_bc->hide();
		for (int i = 0; i < 4; i++) {
			spin[i]->grab_focus();
		}
	}
	update_property();
}
void EditorPropertyQuaternion::_custom_value_changed(double val) {