tgriesser/bookshelf — pull request #215 by p-baleine (2014-01-29 09:54:18+00:00)
Title: Groups related by pivot's id on belongsTo through relation.

When the relation is `belongsTo through` on eager loading, group related models by pibot's id.
This would make it possible to fetch the related model's data by eager loading on `belongsTo through` relation and
fixes issue #214.