transform deserialized twice

[sbounmy]

I have a custom transform which basically convert day to seconds:

// /app/models/post.js
export default DS.Model.extend({
  readyIn: DS.attr('day')
});

// /app/transforms/day.js
export default DS.Transform.extend({
  serialize: function(jsonData) {
    return jsonData * 86400;
  },
  deserialize: function(externalData) {
    return externalData / 86400;
  }
});

using localstorage, when saving a post with readyIn set to 3:

• readyIn is properly serialized to 259 200 in localstorage web inspector
• readyIn is equal undefined in ember inspector simply because deserialize is called twice...