    if(rrset.signerName.length > name.length
            || !rrset.signerName.equals(0, name, name.length - rrset.signerName.length))    //## This allows matches such as name="SubString.com" signerName="String.com", which is clearly incorrect, use label counts instead
        {
            revert InvalidSignerName(name, rrset.signerName);
        }
