Return null if resolve failed

Author: IntoTheDev

Runtime/AssetFormatter.cs

@@ -15,9 +15,9 @@ public void Serialize(ref MessagePackWriter writer, T value, MessagePackSerializ
 
         public T Deserialize(ref MessagePackReader reader, MessagePackSerializerOptions options)
         {
-            DataSerializer.Container.TryGetObject(reader.ReadUInt16(), out var value);
-			
-            return (T)value;
+            var resolved = DataSerializer.Container.TryResolveReference(reader.ReadUInt16(), out var value);
+
+            return resolved ? (T)value : null;
         }
     }
-}
+}