public IEnumerable<LocalConnectionPropertiesModel> Deserialize(string serializedData)
                  .Select(m => new XElement("Node",
                                          new XAttribute("ConnectionId", m.ConnectionId),
                                          new XAttribute("Connected", m.Connected),
                                          new XAttribute("Expanded", m.Expanded),
                                          new XAttribute("Favorite", m.Favorite) // added #1470
                                          ));

public IEnumerable<LocalConnectionPropertiesModel> Deserialize(string serializedData)
                     .Select(e => new LocalConnectionPropertiesModel
                   {
                       ConnectionId = e.Attribute("ConnectionId")?.Value,
                       Connected = bool.Parse(e.Attribute("Connected")?.Value ?? "False"),
                       Expanded = bool.Parse(e.Attribute("Expanded")?.Value ?? "False"),
                       Favorite = bool.Parse(e.Attribute("Favorite")?.Value ?? "False") // added #1470
                   });