StackOverflow MefMultiExport

using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.ComponentModel.Composition.Hosting;
using System.Reflection;

namespace MefTry
{
    public class Program
    {
        [ImportMany]
        public List<Lazy<IFoo, IFooMultiMeta>> Foos { get; set; }

        private static void Main ()
        {
            new Program().MainInternal();
        }

        private void MainInternal ()
        {
            new CompositionContainer(new AssemblyCatalog(Assembly.GetExecutingAssembly())).ComposeParts(this);
            foreach (Lazy<IFoo, IFooMultiMeta> lazyFoo in Foos)
                for (int i = 0; i < lazyFoo.Metadata.Name.Length; i++)
                    Console.WriteLine("* {0} {1}", lazyFoo.Metadata.Name[i], lazyFoo.Metadata.Version[i]);
            Console.WriteLine(Equals(Foos[0].Metadata, Foos[1].Metadata));
            Console.ReadKey();
        }
    }

    public interface IFoo
    {
        void Do ();
    }

    public interface IFooMeta
    {
        string Name { get; }
        string Version { get; }
    }

    public interface IFooMultiMeta
    {
        string[] Name { get; }
        string[] Version { get; }
    }

    [MetadataAttribute, AttributeUsage (AttributeTargets.Class, AllowMultiple = true)]
    public class ExportFooAttribute : ExportAttribute, IFooMeta
    {
        public string Name { get; private set; }
        public string Version { get; private set; }

        public ExportFooAttribute (string name, string version) : base(typeof(IFoo))
        {
            Name = name;
            Version = version;
        }
    }

    [ExportFoo ("Bar", "1.0")]
    [ExportFoo ("Baz", "1.0")]
    [ExportFoo ("Baz", "2.0")]
    public class Foo : IFoo
    {
        public void Do ()
        {}
    }
}