5.5.13 main.user_limits fails with T_P_S=4

main.user_limits [ fail ]
        Test ended at 2011-05-10 16:43:39

CURRENT_TEST: main.user_limits
mysqltest: At line 33: query 'select * from t1' failed: 1226: User 'mysqltest_1' has exceeded the 'max_questions' resource (current value: 2)

The result from queries just before the failure was:
drop table if exists t1;
create table t1 (i int);
delete from mysql.user where user like 'mysqltest\_%';
delete from mysql.db where user like 'mysqltest\_%';
delete from mysql.tables_priv where user like 'mysqltest\_%';
delete from mysql.columns_priv where user like 'mysqltest\_%';
flush privileges;
grant usage on *.* to mysqltest_1@localhost with max_queries_per_hour 2;
flush user_resources;
select * from t1;
i