.Net: Bug: FunctionChoiceBehavior.None() does not prevent function call with AddAzureOpenAIChatClient #12209

using Azure.Identity;
using Microsoft.SemanticKernel;
using System.ComponentModel;

var builder = Kernel.CreateBuilder();
builder.AddAzureOpenAIChatClient(
    "<<Your model deployment name>>",
    "https://<<Your AOAI resource name>>.openai.azure.com/",
    new AzureCliCredential());

builder.Plugins.AddFromType<TimePlugin>();

var kernel = builder.Build();

var result = await kernel.InvokePromptAsync("What is the current date and time?",
    arguments:new(new PromptExecutionSettings
    {
        FunctionChoiceBehavior = FunctionChoiceBehavior.None(),
    }));
Console.WriteLine(result.GetValue<string>());

public class TimePlugin
{
    [KernelFunction, Description("Returns the current local date and time as a formatted string (yyyy/MM/dd HH:mm:ss).")]
    public string GetCurrentDateTime() => 
        TimeProvider.System.GetLocalNow().ToString("yyyy/MM/dd HH:mm:ss");
}