By Alan Johnson The BBC has reportedly doubled down in its stance in backing Strictly Come Dancing star Giovanni Pernice following an emergency meeting amid behavioural accusations from Amanda Abbington. After Italian Giovanni was partnered with Sherlock star Amanda for the 2023 series of the BBC show, their relationship was dogged by rumours of a feud throughout their Strictly journey. Amanda, 51, pulled out the competition after just five weeks, meanwhile, citing personal reasons. She later failed to appear for the show’s final on December 16, and has since revealed that she has been diagnos…