fix a bug with cloning.

EduNetworkBuilder/Network.cs

@@ -116,7 +116,7 @@ namespace EduNetworkBuilder
             dest.NetTitle = source.NetTitle;
             dest.NetworkFilename = source.NetworkFilename;
             dest.OptionShowLabels = source.OptionShowLabels;
-            dest.PacketColors = source.PacketColors;
+            //dest.PacketColors = source.PacketColors;
             dest.PuzzleName = source.PuzzleName;
             dest.NetMessage = new LanguageStrings(source.NetMessage);
             dest.WhatFrom = source.WhatFrom; //We remember the schoolwork class we came from.