Fix AI not repairing buildings if struck by support powers.

OpenRA.Mods.RA/AI/HackyAI.cs

@@ -785,11 +785,7 @@ namespace OpenRA.Mods.RA.AI
 
 		public void Damaged(Actor self, AttackInfo e)
 		{
-			// TODO: Surely we want to do this even if their destroyer died?
-			if (!enabled || e.Attacker.Destroyed)
-				return;
-
-			if (!e.Attacker.HasTrait<ITargetable>())
+			if (!enabled)
 				return;
 
 			var rb = self.TraitOrDefault<RepairableBuilding>();
@@ -805,6 +801,12 @@ namespace OpenRA.Mods.RA.AI
 				}
 			}
 
+			if (e.Attacker.Destroyed)
+				return;
+
+			if (!e.Attacker.HasTrait<ITargetable>())
+				return;
+
 			if (e.Attacker != null && e.Damage > 0)
 				aggro[e.Attacker.Owner].Aggro += e.Damage;