Fix: fetch all nested relations

[radmen]

When fetching more than one nested relation lucid included only the first one.
This PR provides a simple fix for this issue.

[radmen]

I've tried to run tests on Node v9.3; the went without any errors.
Any idea why they fail on AppVeyor?

[coveralls]

Coverage decreased (-0.003%) to 96.333% when pulling d713f01 on radmen:fix-fetch-all-relations into 5703a7c on adonisjs:develop.

[radmen]

@thetutlage is it possible to restart CI builds?

[thetutlage]

I have started the Jobs.

Also would you mind adding a deep nested relationship test too, just. want to make sure there is no edge case here.

That will be having parts relationship on the Car Model.

class Part extends Model {
}

class Car extends Model {
  parts () {
    this.hasMany(Part)
  }
}

And doing

with('user.car.parts')

[radmen]

Also would you mind adding a deep nested relationship test too, just. want to make sure there is no edge case here.

Sure will add it.

I have started the Jobs.

Thank you.

[thetutlage]

Also try using _.each here, just that we use lodash everywhere

[radmen]

Was wondering about this - do we need it? I mean, most use cases of lodash can be done easily using native API.

[thetutlage]

Yeah but once project is using it, there is no point is mixing both. So until lodash stays, I prefer keeping it uniformed

[radmen]

I don't agree with you on that, yet I'll update PR to your request :)

[radmen]

Fixed in 3676b2e

[radmen]

@thetutlage I've added new test case in 75939ad

[coveralls]

Coverage decreased (-0.003%) to 96.333% when pulling 75939ad on radmen:fix-fetch-all-relations into 5703a7c on adonisjs:develop.

[thetutlage]

Yeah but once project is using it, there is no point is mixing both. So until lodash stays, I prefer keeping it uniformed

[coveralls]

Coverage decreased (-0.003%) to 96.333% when pulling 3676b2e on radmen:fix-fetch-all-relations into 5703a7c on adonisjs:develop.

[radmen]

Thank you!