Introduced OperationFlags::InitializeNewInstance to the Json Serialization which allows custom json serializers to indicate that they need to set defaults only to new instances. Objects created to fill in a pointer are considered new objects and serializer can use the new ContinuationFlags::LoadAsNewInstance to also inform that the load is happening on a new object. Serializer that use the InitializeNewInstance flag know that a new object is begin initialized if they're called with an explicit default object.
AMZN-koppersr
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