.paginate can't call getRelated method

[hlozancic]

As the title says, it seams like it's impossible to transform related content if using .paginate() instead, for example, .collection().

This will work (but it will not return adonis pagination info):

const posts = await Posts.query().with('tags').paginate()
transform.include('tags').collection(posts, PostTransformer)

This will not work:

const posts = await Posts.query().with('tags').paginate()
transform.include('tags').paginate(posts, PostTransformer)

Error thrown is: model.getRelated is not a function... PostTransformer has this include:

includeTags(model) {
        return this.collection(model.getRelated('tags'), TagTransformer)
    }

Without .include() and defaultIncludes inside transformer, .paginate() works as expected

[rhwilr]

This issue was fixed by @spamoom in #14