User.IsInRole() does not work right after role assignment, but does after re-login

In a ASP.NET MVC 5 application I'm using Unity container to create OWIN/Identity objects and resolve all the dependencies.

The problem is when I register as a new user and assign him a role like this

userManager.AddToRole(user.Id, "NewUser");
...
await userManager.UpdateAsync(user);

it actually creates a record in AspNetUserRoles table, but right after that if I check his role with User.IsInRole("NewUser") I get false, unless I log out and then log in again, then it is true.

I guess the problem could be with Identity objects (UserManager, RoleManager, etc.) lifetime management in Unity context.

UnityConfig.cs

public static void RegisterTypes(IUnityContainer container)
{
    // DbContext
    container.RegisterType<DbContext, AppEntitiesDbContext>();
    container.RegisterType<AppIdentityDbContext>();

    // Identity
    container.RegisterType<IUserStore<ApplicationUser>, UserStore<ApplicationUser>>(
                new InjectionConstructor(typeof(AppIdentityDbContext)));

    container.RegisterType<IAuthenticationManager>(
                new InjectionFactory(c => HttpContext.Current.GetOwinContext().Authentication));

    container.RegisterType<IRoleStore<IdentityRole, string>, RoleStore<IdentityRole>>(
                new InjectionConstructor(typeof(AppIdentityDbContext)));

     container.RegisterType<ApplicationUserManager>();
     container.RegisterType<ApplicationSignInManager>();
     container.RegisterType<ApplicationRoleManager>();
}

IdentityConfig.cs (I use <add key="owin:AppStartup" value="MyApp.IdentityConfig" /> in Web.config)

public class IdentityConfig
{
    public void Configuration(IAppBuilder app)
    {
        var container = UnityConfig.GetConfiguredContainer();

        app.CreatePerOwinContext(() => container.Resolve<AppIdentityDbContext>());
        app.CreatePerOwinContext(() => container.Resolve<ApplicationUserManager>());
        app.CreatePerOwinContext(() => container.Resolve<ApplicationSignInManager>());
        app.CreatePerOwinContext(() => container.Resolve<ApplicationRoleManager>());

        app.UseCookieAuthentication(new CookieAuthenticationOptions
        {
            AuthenticationType = DefaultAuthenticationTypes.ApplicationCookie,
                LoginPath = new PathString("/Account/Login")
        });
    }
}