Unable to create an Intune corporate device identifier using the .NET Graph beta SDK

Describe the bug

This code used to work to add a corporate device identifier to Intune via the Graph Beta SDK:
`
var request = new Microsoft.Graph.Beta.Models.ImportedDeviceIdentity
{
ImportedDeviceIdentifier = details.Manufacturer + "," + details.Model + "," + details.SerialNumber,
ImportedDeviceIdentityType = ImportedDeviceIdentityType.ManufacturerModelSerial,
Platform = Microsoft.Graph.Beta.Models.Platform.Windows
};
Microsoft.Graph.Beta.Models.ImportedDeviceIdentity? result = await clientBeta.DeviceManagement.ImportedDeviceIdentities.PostAsync(request);

`
But this now fails with an error 500. The equivalent Graph Explorer request is different now, so there's nothing matching in the SDK:

Expected behavior

There should be a method in the beta SDK to add a corporate device identifier via https://graph.microsoft.com/beta/deviceManagement/importedDeviceIdentities/microsoft.graph.importDeviceIdentityList.

How to reproduce

See above.

SDK Version

5.99

Latest version known to work for scenario above?

No response

Known Workarounds

SendPrimitiveAsync works to craft a custom POST request.

Debug output

No response

Configuration

No response

Other information

No response

Start by comparing the existing ImportedDeviceIdentities.PostAsync request with the beta endpoint /deviceManagement/importedDeviceIdentities/microsoft.graph.importDeviceIdentityList and the Graph Explorer request shown in the issue. Review the SDK's generated request patterns and the SendPrimitiveAsync workaround; done means the beta SDK exposes the operation and can create a corporate device identifier without a custom request.