ASP.NET Identity - Multiple object sets per type are not supported (older answers do not work)

Question

I am trying to use Entity Framework to access the user table entries in ASP.NET Identity and after scaffolding out a new Controller for the ApplicationUser class with the ApplicationDbContext for the database context, I get the runtime error

Multiple object sets per type are not supported. The object sets 'ApplicationUsers' and 'Users' can both contain instances of type 'MyApp.Models.ApplicationUser'

Whilst this question has been asked before here and here, the solutions do not work for me, as I will explain below.

In the process of scaffolding out the Controller and View code, Visual Studio also adds the line

public System.Data.Entity.DbSet<MyApp.Models.ApplicationUser> ApplicationUsers { get; set; }

to the ApplicationDbContext class.

Now, I realise that the problem is that the IdentityDbContext class from which ApplicationDbContext inherits also has a DbSet of type ApplicationUser but removing this line (as suggested in answers here and here) then creates build errors because this property is used in new Controller class. For instance;

namespace MyApp.Controllers
{
    public class NewController : Controller
    {
        private ApplicationDbContext db = new ApplicationDbContext();

        // GET: Admin
        public ActionResult Index()
        {
            return View(db.ApplicationUsers.ToList());
        }
    }
}

I have tried giving both the property and ApplicationUser a different name but I get the same error.

Is there any way of fixing this problem that does not involve deleting the one line?