MPs have already overturned calls for more copyright protection for artists against AI once before.
Lord Watson apologised to the widow of former home secretary Lord Brittan.
Winston Churchill's grandson Sir Nicholas Soames is also included in the 26 new Lords entrants.
The "pork pie plot" is just the latest in a long line of attempted Westminster coups.
The union says plans to challenge sitting MPs - in emails seen by Newsnight - were not adopted.