laravelbook/ardent — pull request #178 by Stamy (2014-03-11 09:58:30+00:00)
Title: Update MorphTo to enable polymorphic eager loading

Taylor recently made a changes to model file in order to enable polymorphic eager loading. More details here https://github.com/laravel/framework/commit/6e0ebee17789431b7c83f1cdcb35213255817905.