obj.hasOwnProperty(key) => key in obj (#151)
obj.hasOwnProperty(key) => key in obj (#151)

obj.hasOwnProerty(key) seems to be returning false for ember data models. key in obj  seems to work for me.
samharnack/ember-changeset,DockYard/ember-changeset,samharnack/ember-changeset,DockYard/ember-changeset,poteto/ember-changeset,poteto/ember-changeset