Fix how to set `changed_attributes` in Rails 4.2.x
Fix how to set `changed_attributes` in Rails 4.2.x

Codeminer42/cm42-central,PedroFelipe/cm42-central,PedroFelipe/cm42-central,Codeminer42/cm42-central,Codeminer42/cm42-central,PedroFelipe/cm42-central