Bug Fix: Selling ATEK loses GPS

OpenRA.Mods.RA/SupportPowers/GpsPower.cs

@@ -22,7 +22,7 @@ namespace OpenRA.Mods.RA
 		public override object Create(ActorInitializer init) { return new GpsPower(init.self, this); }
 	}
 
-	class GpsPower : SupportPower, INotifyDamage, ISync, INotifyStanceChanged
+	class GpsPower : SupportPower, INotifyDamage, ISync, INotifyStanceChanged, INotifySold
 	{
 		public GpsPower(Actor self, GpsPowerInfo info) : base(self, info) { }
 
@@ -46,15 +46,27 @@ namespace OpenRA.Mods.RA
 				w.Add(new DelayedAction((Info as GpsPowerInfo).RevealDelay * 25,
 					() => { Granted = true; RefreshGps(self); }));
 			});
-		}
+		}
+
+		public void Selling(Actor self)
+		{
+			DisableGps();
+		}
+
+		public void Sold(Actor self) { }
 
 		public void Damaged(Actor self, AttackInfo e)
 		{
 			if (e.DamageState == DamageState.Dead)
-			{
-				Granted = false;
-				RefreshGps(self);
+			{
+                DisableGps();
 			}
+		}
+
+		void DisableGps()
+		{
+			Granted = false;
+			RefreshGps(self);
 		}
 
 		void RefreshGps(Actor self)