Validateantiforgerytoken + Back button

Question

Good morning.

I have a login form on a web page using MVC 5, I am using the [Validateantiforgerytoken] function to validate the forms for security reasons.

The page logs in correctly, but when you click the Back button of the browser and enter the login data again the message appears

The given anti-counterfeiting token was intended for the user "", but the current user is "1747".

How do I fix it?

Thank you

`

    [HttpPost]
    [AllowAnonymous]
    [ValidateAntiForgeryToken]
    public ActionResult Index(usuarioModel user)
    {
        if (!ModelState.IsValid)
        {
            ModelState.AddModelError("", "Tentativa de login inválida.");
            return View();
        }

        if (usuarioAplicacao.AutenticarUsuario(user.Cnpj, user.Usuario, user.Senha2))
        {

            return RedirectToAction("Grid", "Atendimento");
        }
        else
        {
            ModelState.AddModelError("", "Tentativa de login inválida.");
            return View();
        }
    }`

@model usuarioModel
@{
    ViewBag.Title = "Efetuar login";
    Layout = "~/Views/Shared/_LayoutLogin.cshtml";
}
Login
 Faça o login para acessar a sua área. 

@using (Html.BeginForm("Index", "home", "", FormMethod.Post, new { @class = "login-form", role = "form" }))
{
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true, "", new { @class = "text-danger" })
    
        
            @Html.TextBoxFor(m => m.Cnpj, new { @class = "form-control form-control-solid placeholder-no-fix form-group", autocomplete = "on", placeholder = "CNPJ" })
            @Html.ValidationMessageFor(m => m.Cnpj, "", new { @class = "text-danger" })
        
        
            @Html.TextBoxFor(m => m.Usuario, new { @class = "form-control form-control-solid placeholder-no-fix form-group", autocomplete = "on", placeholder = "Usuário" })
            @Html.ValidationMessageFor(m => m.Usuario, "", new { @class = "text-danger" })

        
    
    
        
            @Html.PasswordFor(m => m.Senha2, new { @class = "form-control form-control-solid placeholder-no-fix form-group", autocomplete = "on", placeholder = "Senha" })
            @Html.ValidationMessageFor(m => m.Senha2, "", new { @class = "text-danger" })
        
        
            
        
    
}
@section Scripts {
    @Scripts.Render("~/bundles/jqueryval")
}

`