How to configure multiple selector-filters with .NET Client

Issue

• How to configure multiple selector-filters with .NET Client?
  • The following code doesn't work as expected.

Map filters = new Map();
filters.Add(new Symbol("f1"), new DescribedValue(new Symbol("apache.org:selector-filter:string"), "color like 'red%'"));
filters.Add(new Symbol("f2"), new DescribedValue(new Symbol("apache.org:selector-filter:string"), "shape = ''triangle"));
receiver = new ReceiverLink(session, "recv-1", new Source()  { Address = queueName, FilterSet = filters }, null);