IsForEmbeddedSigning field is false for every SignatureRequest

[chrisofspades]

When I get a SignatureRequest objects using GetSignatureRequest(), even ones that I know were made using embedded signing, the IsForEmbeddedSigning field is always false. A simple example:

var client = new HelloSign.Client(apiKey);
var request = client.GetSignatureRequest(id);

// Always prints false
Console.WriteLine("IsForEmbeddedSigning: {0}", request.IsForEmbeddedSigning);

Does this field do anything? Is there any way to tell if a request was embedded or not?