Refit inheritance misses methods

Question

We use Refit for our API declarations and want to use Interface inheritance. A sample is shown here: https://github.com/reactiveui/refit#interface-inheritance

public interface IPlatformRestClient
{
    HttpClient Client { get; }

    [Get("/version")]
    Task<string> GetVersion();
}

public interface ITestRestClient : IPlatformRestClient
{
    [Get("/test")]
    Task<string> Test();
}

I may be blind and do something wrong, but the construct results in the following error message

'AutoGeneratedITestRestClient' does not implement interface member 'IPlatformRestClient.GetVersion()' Platform.RestClient.UnitTests

And if I open the stubs:

/// <inheritdoc />
[global::System.Diagnostics.CodeAnalysis.ExcludeFromCodeCoverage]
[global::System.Diagnostics.DebuggerNonUserCode]
[Preserve]
[global::System.Reflection.Obfuscation(Exclude=true)]
partial class AutoGeneratedITestRestClient : ITestRestClient
{
    /// <inheritdoc />
    public HttpClient Client { get; protected set; }
    readonly IRequestBuilder requestBuilder;

    /// <inheritdoc />
    public AutoGeneratedITestRestClient(HttpClient client, IRequestBuilder requestBuilder)
    {
        Client = client;
        this.requestBuilder = requestBuilder;
    }

    /// <inheritdoc />
    Task<string> ITestRestClient.Test()
    {
        var arguments = new object[] {  };
        var func = requestBuilder.BuildRestResultFuncForMethod("Test", new Type[] {  });
        return (Task<string>)func(Client, arguments);
    }
}

So is this feature broken or do I have any error?