IsRequired(false) created same field name with additional 1

public class Table1
{
        public int Table1Id { get; set; }
        public string Name { get; set; }

        public virtual ICollection<Table2> MyTables { get; set; }
}

public class Table2
{
        public int Table2Id { get; set; }
        public int Table1Id { get; set; }
        [ForeignKey("Table1Id")]
        public virtual Table1 Table1 { get; set; }
}

protected override void OnModelCreating(ModelBuilder builder)
{
    builder.Entity<Table1>()
        .HasMany(e => e.MyTables)
        .WithOne(e => e.Table1)
        .IsRequired(false);
}

PostgresException: 42703: column t.Table1Id1 does not exist

The above code generated additional field that is invalid. Removing false in IsRequired() will operate normally. I am currently using Npgsql.EntityFrameworkCore.PostgreSQL v2.1.1.

[ajcvickers]

It seems unlikely to me that this would be intentional, so a warning makes sense to me.

[divega]

I get that there is a compromise, but to me this one seems to be on the border of being invalid configuration. Do you think the chances that anyone would do this on purpose are high? I don’t, but maybe I am missing something.