By Charlie Conchie The boss of Oaknorth has said London’s public markets are looking “less attractive” than their international peers, signaling the bank’s thinking as it plans a potential IPO. Speaking with City A.M., Rishi Khosla, co-founder of the digital business bank, said “absolutely no decision” had yet been taken on when and where to float the company but years of “insular” Brexit debate had sullied the appeal of the UK on the international stage. “The UK has not done the best in branding over the last two, three, four years. Actually, really since the Brexit referendum vote,” Khosla, …