List<int> will be converted to json and stored in the DB

src/NzbDrone.Core/Datastore/TableMapping.cs

@@ -83,6 +83,7 @@ namespace NzbDrone.Core.Datastore
             MapRepository.Instance.RegisterTypeConverter(typeof(Enum), new EnumIntConverter());
             MapRepository.Instance.RegisterTypeConverter(typeof(Quality), new QualityIntConverter());
             MapRepository.Instance.RegisterTypeConverter(typeof(Dictionary<string, string>), new EmbeddedDocumentConverter());
+            MapRepository.Instance.RegisterTypeConverter(typeof(List<int>), new EmbeddedDocumentConverter());
         }
 
         private static void RegisterProviderSettingConverter()