Nullable enum type can't use on workload.

[Shoichi Yasui]

I use nullable enum type.

public enum WorkerType
{
    A,
    B,
}

public class NullableWorkload : Workload
{
    public NullableWorkload(WorkerType? t) { }
    public override Task ExecuteAsync(WorkloadContext context) => Task.CompletedTask;
}

public class NotNullableWorkload : Workload
{
    public NotNullableWorkload(WorkerType t) { }
    public override Task ExecuteAsync(WorkloadContext context) => Task.CompletedTask;
}

But, Only null in dropdown list.

I hope null , A , B in dropdown list.

[Yoshifumi Kawai]

thanks, I've released 1.0.6, it includes this fix.