[Blazor p8] OnInitializedAsync is executed for twice on pre-render

[ctrl-alt-d]

Issue

OnInitializedAsync is executed for twice on pre-render

General

[dani@localhost tw]$ dotnet --version
3.0.100-preview8-013656

I wrote this code:

@page "/"
@inject IUriHelper UriHelper

<h1>Hello, world!</h1>

Welcome to your new app.

@code{

    protected async override Task OnInitializedAsync()
    {
        System.Console.WriteLine("_*   ");
        System.Console.WriteLine("_**************************");
        System.Console.WriteLine("_***** Pre render ******");
        System.Console.WriteLine("_**************************");
        System.Console.WriteLine("_   ");
        return;
    }
}

And I see is executed for twice only on pre-render:

Has it some explanation?

The question on stackoverfow: Blazor UriHelper.NavigateTo is calling the page twice

[hez2010]

I think blazor related issues should be posted in AspNetCore repo:
https://github.com/aspnet/AspNetCore

[ctrl-alt-d]

Of course @hez2010 , thanks: dotnet/aspnetcore#13607