HMS Cornflower I is Arabis class serving as headquarters and training ship of HKNVF. She was replaced by SS Tai Hing which renamed HMS Cornflower in 1940. She was scuttled during the battle of Hong Kong in Dec 1941. After the war, Algerine class HMS Lysander was sent to Hong Kong and renamed HMS Cornflower as the headquarters and training ship of HKRNVR (later HKRNR). Therefore, there are 3 ships named Cornflower in history.
Because SS Tai Hing was loan to HKNVF by Sir Robert Ho Tung. The second Cornflower (SS Tai Hing) was actually not owned by Royal Navy. As such, the Arabis class Cornflower usually named Cornflower I and the Algerine class Cornflower named Cornflower II. This is because SS Tai Hing has been forgotten for decades in history until I did research, published a short paper last year and then updated Wiki. Therefore, many books or online resources nowadays still skip Tai Hing and consider the Arabis class Cornflower is the only Cornflower before WWII.