Merge pull request #3726 from pchote/cloak-fix

Cloak fixes

OpenRA.Mods.RA/Move/Mobile.cs

@@ -496,7 +496,7 @@ namespace OpenRA.Mods.RA.Move
 
 			public bool CanTarget(Actor self, Target target, List<Actor> othersAtTarget, TargetModifiers modifiers, ref string cursor)
 			{
-				if (!target.IsValid)
+				if (!target.IsValidFor(self))
 					return false;
 
 				var location = target.CenterPosition.ToCPos();

OpenRA.Mods.RA/Move/Move.cs

@@ -73,7 +73,7 @@ namespace OpenRA.Mods.RA.Move
 		{
 			this.getPath = (self, mobile) =>
 			{
-				if (!target.IsValid)
+				if (!target.IsValidFor(self))
 					return NoPath;
 
 				return self.World.WorldActor.Trait<PathFinder>().FindUnitPathToRange(