multiple use of "SET STATEMENT sql_select_limit=xx FOR" set it at session level.

When using multi-statement capability, using multiple "SET STATEMENT sql_select_limit=xx FOR" in one query will set first "sql_select_limit" at session level, not only for the current query.

example executing command :
"SET STATEMENT sql_select_limit=2 FOR SELECT * FROM seq_1_to_5;SELECT * FROM seq_1_to_5;SET STATEMENT sql_select_limit=3 FOR SELECT * FROM seq_1_to_5;SELECT * FROM seq_1_to_5"

will return correctly return 2, 2, 3 and 3 rows, problem is that session sql_select_limit is then incorrectly set to value 2.