RenameColumn(table: "dbo.Users", name: "ImageLargeId", newName: "__mig_tmp__0");
RenameColumn(table: "dbo.Users", name: "ImageSmallId", newName: "ImageLargeId");
RenameColumn(table: "dbo.Users", name: "__mig_tmp__0", newName: "ImageSmallId");
RenameIndex(table: "dbo.Users", name: "IX_ImageLargeId", newName: "__mig_tmp__0");
RenameIndex(table: "dbo.Users", name: "IX_ImageSmallId", newName: "IX_ImageLargeId");
RenameIndex(table: "dbo.Users", name: "__mig_tmp__0", newName: "IX_ImageSmallId");

public class BugContext : DbContext
{
    public virtual DbSet<Image> Images { get; set; }
    public virtual DbSet<User> Users { get; set; }

    // BUG: Enable/disable this part will generate a invalid migration file
    //public virtual DbSet<UserSettings> UserSettings { get; set; }
    //public virtual DbSet<UserRights> UserRights { get; set; }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        modelBuilder.Entity<User>().ToTable("Users");
        modelBuilder.Entity<UserSettings>().ToTable("Users");
        modelBuilder.Entity<UserRights>().ToTable("Users");

        modelBuilder.Entity<User>().HasOptional(user => user.ImageSmall).WithMany(image => image.User_ImageSmalls);
        modelBuilder.Entity<User>().HasOptional(user => user.ImageLarge).WithMany(image => image.User_ImageLarges);

        modelBuilder.Entity<User>().HasRequired(user => user.Settings).WithRequiredPrincipal(userSettings => userSettings.User);
        modelBuilder.Entity<User>().HasRequired(user => user.Rights).WithRequiredPrincipal(userRights => userRights.User);
    }
}

public class Image
{
    [Key]
    public Guid Id { get; set; }

    public virtual ICollection<User> User_ImageSmalls { get; set; }
    public virtual ICollection<User> User_ImageLarges { get; set; }
}

public class User
{
    [Key]
    public Guid Id { get; set; }

    [Required]
    [MaxLength(256)]
    public string Name { get; set; }

    public Guid? ImageSmallId { get; set; }
    public virtual Image ImageSmall { get; set; }

    public Guid? ImageLargeId { get; set; }
    public virtual Image ImageLarge { get; set; }

    public virtual UserSettings Settings { get; set; }
    public virtual UserRights Rights { get; set; }
}

public class UserSettings
{
    [Key]
    public Guid Id { get; set; }

    [ForeignKey(nameof(Id))]
    public virtual User User { get; set; }

    public bool DarkTheme { get; set; }
}

public class UserRights
{
    [Key]
    public Guid Id { get; set; }

    [ForeignKey(nameof(Id))]
    public virtual User User { get; set; }

    public bool Admin { get; set; }
}