fixed #2540 AI orders misinterpreted as an exploit on dedicated

OpenRA.Game/Network/Session.cs

@@ -57,6 +57,7 @@ namespace OpenRA.Network
 			public int Team;
 			public string Slot;	// slot ID, or null for observer
 			public string Bot; // Bot type, null for real clients
+			public int BotControllerClientIndex; // who added the bot to the slot
 			public bool IsAdmin;
 			public bool IsReady { get { return State == ClientState.Ready; } }
 			public bool IsObserver { get { return Slot == null; } }