PostSharp and inheritance aspect through hierarchy

According to the PostSharp documentation, attribute inheritance should be among others supported:

The parameter or return value of the abstract, virtual, or method interface

But in my case, it does not support inheritance when these supported elements are combined. I have this minimal code to reproduce the problem:

public interface IData { }

public interface ITest
{
    void DoSomething([Required] IData data);
}

public abstract class AbstractTest : ITest
{
    public abstract void DoSomething(IData data);
}

public class Test : AbstractTest
{
    public override void DoSomething(IData data)
    {
        throw new NotImplementedException();
    }
}

The construction of this code ends with:

PostSharp.Patterns.Contracts.RequiredAttribute "cannot be applied to the method" PostSharpInheritance.AbstractTest.DoSomething(PostSharpInheritance.IData)@data "because it is abstract.

Required , . Required , , .

() , ?