fix method when rotation_mode changed

scene/3d/node_3d.h

@@ -81,6 +81,7 @@ private:
 		mutable Transform3D global_transform;
 		mutable Transform3D local_transform;
 		mutable Basis::EulerOrder rotation_order = Basis::EULER_ORDER_YXZ;
+		mutable Quaternion quaternion;
 		mutable Vector3 rotation;
 		mutable Vector3 scale = Vector3(1, 1, 1);
 		mutable RotationEditMode rotation_edit_mode = ROTATION_EDIT_MODE_EULER;