European Union Bill

I am very grateful to the noble Lord for allowing me to interrupt him. This is a very important point. If the Bill is passed in its present form with its text unamended, is he confident that it could not subsequently be argued—if there are going to be judicial reviews of ministerial decisions on this matter—during the accession of a new member state that the mere fact of accession reduces the powers of this country because it dilutes our voting strength in the European Union under QMV and for other purposes?