Pulumi imports some properties of Azure KeyVault incorrectly

What happened?

I'd like to import existing Azure KeyVault to my stack. Import works correctly, but when I do a preview on just imported resources, I see the following change

~ sku : {
              ~ name: "Standard" => "standard"
            }

So Pulumi imports sku.name as Standard but the struct used to describe the sku name looks like

public static SkuName Standard { get; } = new SkuName("standard");
public static SkuName Premium { get; } = new SkuName("premium");

I'd expect no changes after successful import.

Steps to reproduce

Import existing Azure KeyVault to your stack
Execute pulumi preview

Expected Behavior

There should be no changes to apply.

Actual Behavior

Pulumi sees sku.name as updated.

Versions used

CLI Version 3.33.2 Go Version go1.17.10 Go Compiler gc

Plugins NAME VERSION azure-native 1.64.1 dotnet unknown

Host OS Microsoft Windows 11 Pro Version 10.0.22000 Build 22000 Arch x86_64

This project is written in dotnet (C:\Program Files\dotnet\dotnet.exe v6.0.300)

Current Stack: prod

TYPE URN pulumi:pulumi:Stack urn:pulumi:prod::Occtoo.Common.Infrastructure::pulumi:pulumi:Stack::Occtoo.Common.Infrastructure-prod pulumi:providers:azure-native urn:pulumi:prod::Occtoo.Common.Infrastructure::pulumi:providers:azure-native::default_1_64_1 azure-native:resources:ResourceGroup urn:pulumi:prod::Occtoo.Common.Infrastructure::azure-native:resources:ResourceGroup::production

Found no pending operations associated with prod

Backend Name pulumi.com URL xxx User xxx Organizations xxx

NAME VERSION Pulumi 3.33.1 Pulumi.AzureNative 1.64.1

Additional context

No response

Contributing

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pulumi / pulumi-azure-native