[Bug or Feature] physics.collisionEvents.on('collision' not omit if body.on.collision not be call.

[Lyoko-Jeremie]

i have some objects, a wall (A) , a Barrier (B) , a user control object (C).

first register the global collisionEvents listener:

        (this.physics as any).collisionEvents.on('collision', (data: any) => {
            const bodies: [ExtendedObject3D, ExtendedObject3D] = data.bodies;
            const event: CollisionEvent = data.event;
        });

second init all object.

move the object (C) to collistion with (A) or (B), the above global collisionEvent listener not be call.

after register the collision listener on object (C) like follow:

this.g.body.on.collision((otherObject: ExtendedObject3D, event: CollisionEvent)=>{
    //......
});

the move the object (C) to collistion with (A) or (B) again , the above global collisionEvent listener will be call as expected.

Is this a Bug or Feature ? i think in some way, this is a Feature, right ?