Error when setting default value for child classes in TPH

[scottste]

Steps to reproduce

Create a default template project with the individual accounts authentication. Change the ApplicationDbContext class to be:

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
        : base(options)
    {
    }

    protected override void OnModelCreating(ModelBuilder builder)
    {
        base.OnModelCreating(builder);

        builder.Entity<Dog>()
            .Property(d => d.Selected)
            .HasDefaultValue(false);

        builder.Entity<Cat>()
            .Property(c => c.Selected)
            .HasDefaultValue(false);
    }

    public DbSet<Dog> Dogs { get; set; }

    public DbSet<Cat> Cats { get; set; }

    public DbSet<Animal> Animals { get; set; }
}

public abstract class Animal
{
    public int Id { get; set; }
}

public class Dog : Animal
{
    public bool Selected { get; set; }
}

public class Cat : Animal
{
    public bool Selected { get; set; }
}

Run Add-Migration initial

The issue

I get the following exception:

System.InvalidOperationException: 'Cat.Selected' and 'Dog.Selected' are both mapped to column 'Selected' in '.Animals' but are configured to use different default values ('False' and 'False').    at Microsoft.EntityFrameworkCore.Internal.ModelValidator.ShowError(String message)
   at Microsoft.EntityFrameworkCore.Internal.RelationalModelValidator.EnsureSharedColumnsCompatibility(IModel model) 
   at Microsoft.EntityFrameworkCore.Internal.RelationalModelValidator.Validate(IModel model)
   at Microsoft.EntityFrameworkCore.Infrastructure.ModelSource.CreateModel(DbContext context, IConventionSetBuilder conventionSetBuilder, IModelValidator validator)
   at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
    at Microsoft.EntityFrameworkCore.Internal.DbContextServices.CreateModel()
    at Microsoft.EntityFrameworkCore.Internal.LazyRef`1.get_Value() 
    at Microsoft.Extensions.DependencyInjection.ServiceProvider.ScopedCallSite.Invoke(ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetService[T](IServiceProvider provider)
    at Microsoft.Extensions.DependencyInjection.ServiceProvider.TransientCallSite.Invoke(ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceLookup.ConstructorCallSite.Invoke(ServiceProvider provider)
    at Microsoft.Extensions.DependencyInjection.ServiceProvider.TransientCallSite.Invoke(ServiceProvider provider) 
    at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
    at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider) 
    at Microsoft.EntityFrameworkCore.Design.MigrationsOperations.AddMigration(String name, String outputDir, String contextType)
    at Microsoft.EntityFrameworkCore.Tools.Cli.MigrationsAddCommand.Execute(CommonOptions commonOptions, String name, String outputDir, String context, String environment, Action`1 reporter) 
   at Microsoft.EntityFrameworkCore.Tools.Cli.MigrationsAddCommand.<>c__DisplayClass0_0.<Configure>b__0()
    at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.Execute(String[] args)
    at Microsoft.EntityFrameworkCore.Tools.Cli.Program.Main(String[] args) 
 'Cat.Selected' and 'Dog.Selected' are both mapped to column 'Selected' in '.Animals' but are configured to use different default values ('False' and 'False'). 

I would expect that since the default values are the same that this would be allowed. My current work around is to create an intermediate abstract class that has the property in it, but I would kind of prefer not do that in this situation. Is there another way to make the default values work in this situation?

Further technical details

EF Core version: 1.0.0
Operating system: Windows 10
Visual Studio version: VS 2015