Turkish President Recep Tayyip Erdoğan proved to be a host with a sense of humour during a lunchtime visit by German President Frank-Walter Steinmeier on Wednesday. After three days of coverage of Steinmeier’s trip centred on the fact that he had brought with him a large vertical rotisserie with 60 kilogrammes of kebab meat – and the operator of a Berlin kebab shop, too – what did Erdoğan serve at his lunch on Wednesday with the German president? Exactly: kebabs. The meat rotated on its skewer on a terrace of the presidential palace in Ankara while the delegations ate inside. Steinmeier’s bold…