PACKAGE BODY initialization section that contains dynamic SQL fails with ER_NO_SUCH_TABLE for a table that exists

SET sql_mode=ORACLE;

CREATE TABLE t1 (a INT); 

INSERT INTO t1 VALUES (1);

DELIMITER $$

CREATE PACKAGE pkg1 AS FUNCTION f RETURN INT; END;$$

CREATE PACKAGE BODY pkg1 AS

  FUNCTION f RETURN INT AS BEGIN RETURN 42; END;

BEGIN

  EXECUTE IMMEDIATE 'SELECT COUNT(*) FROM t1 INTO @px_cnt';

END;$$

CREATE PROCEDURE p1() AS v INT; BEGIN v := pkg1.f(); END;$$

DELIMITER ;

CALL p1();   -- ERROR 1146: Table 'test.t1' doesn't exist  (t1 exists)

13.1.0-opt>SET sql_mode=ORACLE;

Query OK, 0 rows affected (0.000 sec)

13.1.0-opt>CREATE TABLE t1 (a INT);

Query OK, 0 rows affected (0.013 sec)

13.1.0-opt>INSERT INTO t1 VALUES (1);

Query OK, 1 row affected (0.002 sec)

13.1.0-opt>DELIMITER $$

13.1.0-opt>CREATE PACKAGE pkg1 AS FUNCTION f RETURN INT; END;$$

Query OK, 0 rows affected (0.003 sec)

13.1.0-opt>CREATE PACKAGE BODY pkg1 AS

    ->   FUNCTION f RETURN INT AS BEGIN RETURN 42; END;

    -> BEGIN

    ->   EXECUTE IMMEDIATE 'SELECT COUNT(*) FROM t1 INTO @px_cnt';

    -> END;$$

Query OK, 0 rows affected (0.005 sec)

13.1.0-opt>CREATE PROCEDURE p1() AS v INT; BEGIN v := pkg1.f(); END;$$

Query OK, 0 rows affected (0.005 sec)

13.1.0-opt>DELIMITER ;

13.1.0-opt>CALL p1();  

ERROR 1146 (42S02): Table 'test.t1' doesn't exist

13.1.0-opt>SELECT * FROM t1;

+------+

| a    |

+------+

|    1 |

+------+

1 row in set (0.001 sec)

13.1.0-opt>