(Bloomberg) -- Citigroup Inc. told private bankers serving Chinese clients not to discuss the yuan or hedging the currency risk when making trips to the mainland, according to people familiar with the matter, underscoring growing sensitivity in onshore dealings. Most Read from BloombergBlinken’s Return From Davos Was Delayed After Plane Broke DownYouTube and Spotify Won’t Launch Apple Vision Pro Apps, Joining NetflixPakistan’s Army Strikes Back at Iran as Both Sides Urge CalmTrump Asks Supreme C