0ce8c23ccf
network_metadata's parameter "nics" is expected to be a list. In some instances it will be left as a string unless the type is explicitly set. Also the default of '' is incorrect since a string is not expected but a list. Omitting it is the correct way, since it is not rquired. Change-Id: If3376ee24507ed6f22e269e4440d2e371ff33eb4