Setting Guid to null

To set an entityreference to null, it is stated that:For example, to set an EntityReference type to null, you must set the Id, the LogicalName, and the Name properties to null.However - the Id property is a Guid, which is not nullable.How can you set the entityreference to null then? Either in C# or js using REST.jdaly[MSFT] -You are correct that the Microsoft.Xrm.Sdk.EntityReference Id property is not nulllable.The difference is that with REST in Silverlight you use the Microsoft.Crm.Sdk.Data.S