Update Returning Into expected to produce warning/error for zero-row plan

CREATE TABLE t1 (a INT);

UPDATE t1 SET a=a+1 WHERE 1=0 RETURNING a INTO @a;

INSERT INTO t1 VALUES (1),(2);

--error ER_SP_FETCH_NO_DATA

UPDATE t1 SET a=a+1 WHERE a=123 RETURNING a INTO @a;

UPDATE t1 SET a=a+1 WHERE 1=0 RETURNING a INTO @a;

UPDATE t1 SET a=a+1 limit 0 RETURNING a INTO @a;

DROP TABLE t1;

CREATE TABLE t1 (a INT);

UPDATE t1 SET a=a+1 WHERE 1=0 RETURNING a INTO @a;

INSERT INTO t1 VALUES (1),(2);

UPDATE t1 SET a=a+1 WHERE a=123 RETURNING a INTO @a;

ERROR 02000: No data - zero rows fetched, selected, or processed

UPDATE t1 SET a=a+1 WHERE 1=0 RETURNING a INTO @a;

UPDATE t1 SET a=a+1 limit 0 RETURNING a INTO @a;

DROP TABLE t1;