updateAsDraft returns boolean

[SergkeiM]

Currently updateAsDraft returns boolean,

So when you update a Model as Draft there is no possibilty to attach relationship to new Draft Model

Example:

$draft = $page->updateAsDraft($request->all());

$draft->domains()->attach([1, 2, 3]); //fails as draft is not new `Model` created but `boolean`

Note: will create a PR if this sounds legit to implement

[oddvalue]

@FROXZ Yeah, I can see how that might be confusing. It's set up that way to replicate the functionality of the update method on the base model. While I can see the value in having it return the draft instead that would be a breaking change in the package. Perhaps there could be a different method that returns the draft after saving.