Hiding doesn't work on interfaces?

[Erik de Hair]

Hi,

While upgrading to Apache Isis 1.15.0 I noticed hiding didn't work 
anymore on properties represented by an interface. In the following 
example the String will be hidden but the HideMe-property will not:

public HideMe getInterfaceToBeHidden(){
        return null;
    }
    public boolean hideInterfaceToBeHidden(){
        return true;
    }
    public String getStringToBeHidden(){
        return "foo";
    }
    public boolean hideStringToBeHidden(){
        return true;
    }

With Apache Isis 1.14.x this works as expected.

Shall I raise an issue for this?

Thanks,
Erik