Hyperion failed with "Index was out of range" in `GetDeserializedObject` when payload has Duplicate Values

My payload contains data like this in an FSharp Record. The error goes away if the values if the values are different. Only occurs when `preserve object refs` is true.

```
Section = Some "sd"
SubDivision = Some "sd"
```

This is the exception.

```
$exception {"Index was out of range. Must be non-negative and less than the size of the collection.\r\nParameter name: index"} System.ArgumentOutOfRangeException
```

Here is the line that fails.

```
public class DeserializerSession
{
////
public object GetDeserializedObject(int id)
{
return _objectById[id]; // <- here
}
////
```

Stack Trace

```
> Hyperion.dll!Hyperion.DeserializerSession.GetDeserializedObject(int id = 14) Line 66 C#
Hyperion.dll!Hyperion.ValueSerializers.ObjectReferenceSerializer.ReadValue(System.IO.Stream stream = {System.IO.MemoryStream}, Hyperion.DeserializerSession session = {Hyperion.DeserializerSession}) Line 34 C#
Hyperion.dll!Hyperion.Extensions.StreamEx.ReadObject(System.IO.Stream stream = {System.IO.MemoryStream}, Hyperion.DeserializerSession session = {Hyperion.DeserializerSession}) Line 172 C#
```

Start with DeserializerSession.GetDeserializedObject and trace the object-reference path through ObjectReferenceSerializer.ReadValue and StreamEx.ReadObject. Reproduce the failure using an F# record with duplicate Some values while preserve object refs is enabled; done means the payload deserializes without the reported index error.

Written by the indexing model from the issue text.