[LayaAir3]3.3.0.beta.3 2d物理RigidBody代码生成问题

通过代码生成的RigidBody的shapes为undefine（通过浏览器断点查看），在ide里查看也没有shapes属性，通过ide创建的是有的
 
    private addRigidBody(object: Laya.Sprite): Laya.RigidBody {
        const rigidBody = object.addComponent(Laya.RigidBody);
        rigidBody.type = "kinematic";
        rigidBody.label = object.name; // 添加标签
        const shape = new Laya.BoxShape2D();
        shape.x = object.width / 2;
        shape.y = object.height / 2;
        shape.width = 1;
        shape.height = 1;
        rigidBody.shapes = [shape];
        return rigidBody;
    }