Getting a the new value of RowVersion using Entity Framework 6

Thanks to grennis, I found out the source of my problems.

I defined the interface and an entity like

public interface IRowVersion
{
    // Attention: this will not be "inherited" by the implementing class !!!
    [Timestamp]
    byte[] VersionStamp { get; set; }
}

public class Directory : IRowVersion
{
    [Key]
    public int Id { get; set; }

    public string Title { get; set; }
    public string Description { get; set; }

    // If this attribute is missing here, then row version is used
    // My initial version was without this attribute
    [Timestamp]
    public byte[] VersionStamp { get; set; }
}

In my problematic version, I thought that having the attribute on the interface property is enough. However, the attribute must be explicitly applied on the entity's property. Otherwise it will not be used at all (not even as the part of update SQL statement). The value was updated only because the DB updates the column value automatically and of course, at next read, I got the new value.

Not entirely related to the problem, but still worth mentioning... The following is really a killer feature of EF6

ctx.Database.Log = s => Debug.Write(s);

SQL Profiler, it was nice knowing you :-)