Bug #119290 SELECT statement is affected by concurrent transaction under Read Uncommitted

Description:
Isolation Level: Read Uncommitted.
The SELECT statement is affected by the blocked statement in another concurrent transaction. 

How to repeat:
/* init */ DROP TABLE IF EXISTS t;
/* init */ CREATE TABLE t(c1 INT NOT NULL, c2 INT NOT NULL);
/* init */ INSERT INTO t(c1,c2) VALUES (2, 2);
 
/* t1 */ BEGIN;
/* t2 */ BEGIN;
/* t2 */ INSERT INTO t(c1,c2) VALUES (5, 5);
/* t2 */ SELECT * FROM t; -- [(2, 2), (5, 5)]
/* t1 */ SELECT * FROM t; -- [(2, 2), (5, 5)]
/* t1 */ DELETE FROM t WHERE TRUE; -- blocked
/* t2 */ SELECT * FROM t ; -- [(5, 5)]
/* t2 */ COMMIT; -- t1 unblocked
/* t1 */ COMMIT;

When the DELETE statement in transaction t1 is blocked, strangely, the second SELECT statement in transaction t2 only retrieved (5, 5), but failed to retrieve (2, 2).

add more affected version