Included type seems broken

[lancedikson]

The setting:

I have two serializers: Product and ProductShopVideo.

// file JsonApiViews/V1/Product.js
class Product extends JsonApiView {
  get attributes() {
    return [
      'title',
      'sku',
      // ... some more attrs here, doesn't really matter
      'active'
    ];
  }

  productShopVideos() {
    return this.hasMany('App/Http/JsonApiViews/V1/ProductShopVideo', {
      included: true,
      excludeRelation: 'product',
      ref: '_id'
    })
  }
}

// file JsonApiViews/V1/Product.js
class ProductShopVideo extends JsonApiView {
  get attributes() {
    return [
      "addedDate" ,
      "deletedBy" ,
      "deleted" ,
      "addedBy" ,
      "disabled"
    ];
  }

  product() {
    return this.belongsTo('App/Http/JsonApiViews/V1/Product', {
      ref: 'product'
    });
  }
}

The result I recieve using proper data and the Product serializer is:

{
    "meta": {},
    "included": [
        {
            "type": "productShopVideos",
            "id": "5b432fd15c242f0458c15a9d",
            "attributes": {}
        }
    ],
    "data": {
        "type": "product",
        "id": "5b432fd05c242f0458c15a9a__499",
        "attributes": {},
        "relationships": {
            "product-shop-videos": {
                "data": [
                    {
                        "type": "productShopVideos",
                        "id": "5b432fd15c242f0458c15a9d"
                    }
                ]
            }
        }
    }
}

I removed attributes for both to make it a bit clear. As you can see, the type for ProductShopVideo in included is not relevant. It should be kebab-cased as well.