Yates's Best Bitter (as in the 'house' ale from the no-longer-a-wine-lodge Yates's) - anybody know what it is?

NB - I don't suppose that it is Yates' Best Bitter from Yates' Brewery on the Isle of Wight, or Yates Bitter from the confusingly-named Yates Brewery in Cumbria. Rebadged Courage Best?