public abstract class Context101 : DbContext
    {
        protected override void ConfigureConventions(ModelConfigurationBuilder configurationBuilder)
        {
            base.ConfigureConventions(configurationBuilder);
            configurationBuilder.Conventions.Remove<ForeignKeyIndexConvention>();
        }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
            => optionsBuilder.UseSqlServer("");
    }

    public class Context0 : Context101
    {
        public class Blog
        {
            public int Id { get; set; }
            public int AlternateId { get; set; }
            public ICollection<Post> Posts { get; } = new List<Post>();
        }

        public class Post
        {
            public int Id { get; set; }
            public int BlogId { get; set; }
            public Blog Blog { get; set; }
        }

        public DbSet<Blog> Blogs
            => Set<Blog>();

        public DbSet<Post> Posts
            => Set<Post>();

        protected override void OnModelCreating(ModelBuilder modelBuilder)
            => modelBuilder.Entity<Blog>()
                .HasMany(e => e.Posts)
                .WithOne(e => e.Blog)
                .HasPrincipalKey(e => e.AlternateId);
    }

    public class ContextAnnotated0 : Context101
    {
        public class Blog
        {
            public int Id { get; set; }
            public int AlternateId { get; set; }

            [InverseProperty("Blog")]
            public ICollection<Post> Posts { get; } = new List<Post>();
        }

        public class Post
        {
            public int Id { get; set; }

            [ForeignKey("Blog")]
            public int BlogId { get; set; }

            [ForeignKey("BlogId")]
            [Required]
            [InverseProperty("Posts")]
            public Blog Blog { get; set; }
        }

        public DbSet<Blog> Blogs
            => Set<Blog>();

        public DbSet<Post> Posts
            => Set<Post>();

        protected override void OnModelCreating(ModelBuilder modelBuilder)
            => modelBuilder.Entity<Blog>()
                .HasMany(e => e.Posts)
                .WithOne(e => e.Blog)
                .HasPrincipalKey(e => e.AlternateId);
    }

            await using Context0 context = new();
            await context.Database.EnsureDeletedAsync();
            await context.Database.EnsureCreatedAsync();

            await using ContextAnnotated0 context = new();
            await context.Database.EnsureDeletedAsync();
            await context.Database.EnsureCreatedAsync();