I've never seen anything like this before. I have an object called action containing 3 properties (actionType, faxNumber and guid).

I do console.log('action=', action, 'guid=', action.guid) and get:

action = AutomationActionFax {__ob__: Observer}
   actionType: "fax",
   faxNumber: null,
   guid: "JHANQK1MQ",

guid = null <-- WTF???

How is is possible to see the property guid on the action set to JHANQK1MQ, then ask for action.guid in the same statement and have it return null?