Bug: Registrations are wrong for version 5.9.0 and later #160

[Test]
public void UnityTest()
{
    for (var i = 0; i < 10000; i++) {
        var container = new UnityContainer()
            .RegisterType<IFoo, Foo>()
            .RegisterType<IBar, Bar>()
            // It's important the name is random
            .RegisterType<IBar, Bar>(Guid.NewGuid().ToString());

        var child = container
            .CreateChildContainer()
            .RegisterType<IFoo, Foo>(new ContainerControlledLifetimeManager());

        var registrations = child.Registrations
            .Where(r => r.RegisteredType == typeof(IFoo))
            .ToList();

        Assert.IsNotNull(
            registrations.FirstOrDefault(r => r.LifetimeManager is ContainerControlledLifetimeManager),
            "Singleton registration not found on iteration #" + i);

        // This check fails on random iteration, usually i < 300.
        // It passes for v.5.8.13 but fails for v.5.9.0 and later both for .NET Core and for Framework.
        Assert.IsNull(
            registrations.FirstOrDefault(r => r.LifetimeManager is TransientLifetimeManager),
            "Transient registration found on iteration #" + i);
    }
}

public interface IFoo { }
public class Foo : IFoo { }

public interface IBar { }
public class Bar : IBar { }