By Charlie Conchie The Liberal Democrats look set to win swathes of the so-called Blue Wall and ‘stockbroker belt’ as the Conservative vote collapses in its traditional heartlands. According to the exit poll this evening, the Conservatives are set to lose seats including Wimbledon, Guildford, Godalming and Ash and Esher & Walton in a historic swing to Ed Davey’s party. The former cabinet minister Robert Buckland has also lost his Blue Wall seat of Swindon to Labour’s Heidi Alexander, who will return to parliament after serving as the MP for Lewisham between 2010 and 2018. The so-called Blue Wa…