Question about rigid body behavior with LockedAxes::ROTATION_LOCKED flag

[trsh]

Spawning code:

commands.spawn(MaterialMesh2dBundle {
        material: particle_res.material.clone(),
        mesh: particle_res.mesh.clone().into(),
        ..default()
    })
    .insert(RigidBody::Dynamic)
    .insert(Collider::ball(30.0))
    .insert(Restitution::coefficient(0.7))
    .insert(GravityScale(0.0))
    .insert(LockedAxes::ROTATION_LOCKED)
    .insert(Damping { linear_damping: 0.0, angular_damping: 0.0 })
    .insert(Transform::from_xyz(partice_x, partice_y, 0.0))
    .insert(ExternalImpulse  {
        impulse: Vec2::new(100.0, -200.0),
        torque_impulse: 0.0,
    });

Results

The red path (long one) is where the rb comes from and shorter one where to goes after bounce. I would expect it to go by blue path after bouncing. Am I wrong? With rotation not locked, to goes by blue path.