Fix the "Unit Ready" notification playing erroneously

OpenRA.Mods.Common/Traits/Player/ClassicProductionQueue.cs

@@ -101,7 +101,7 @@ namespace OpenRA.Mods.Common.Traits
 			if (!producers.Any())
 			{
 				CancelProduction(unit.Name, 1);
-				return true;
+				return false;
 			}
 
 			foreach (var p in producers.Where(p => !p.Actor.IsDisabled()))

OpenRA.Mods.Common/Traits/Player/ProductionQueue.cs

@@ -379,7 +379,7 @@ namespace OpenRA.Mods.Common.Traits
 			if (!self.IsInWorld || self.IsDead)
 			{
 				CancelProduction(unit.Name, 1);
-				return true;
+				return false;
 			}
 
 			var inits = new TypeDictionary