AutoMapping overrides and inheritance

I suppose would be very useful if overrides functionality will use type hierarchy for processing. For example, I have entity named SomeEntity that implement interface IHasName with string property Name. By default, string property mappes to nullable NVARCHAR column (if you use MSSQL Server). If I want to override such behavior for all entities, that implement interface IHasName, I would like to write only one implementation of IAutoMappingOverride for interface IHasName, but at the moment it isn't possible.

public class SomeEntity : IHasName
{
    public int Id { get; set; }
    public string Name { get; set; }
}

public interface IHasName
{
    string Name { get; set; }
}

public class HasNameOverride : IAutoMappingOverride<IHasName>
{
    public void Override(AutoMapping<IHasName> mapping)
    {
        mapping.Map(x => x.Name)
            .Not.Nullable();
    }
}

Guys, what do you think about it?