Fix an occasional timeout in innodb.alter_partitioned

mysql-test/suite/innodb/r/alter_partitioned.result

@@ -11,6 +11,8 @@ SAVEPOINT sp;
 INSERT INTO t1 (pk) VALUES (1);
 ROLLBACK TO SAVEPOINT sp;
 connection default;
+SET @save_timeout=@@lock_wait_timeout;
+SET @save_innodb_timeout=@@innodb_lock_wait_timeout;
 SET lock_wait_timeout=0;
 Warnings:
 Warning	1292	Truncated incorrect lock_wait_timeout value: '0'
@@ -19,6 +21,8 @@ Warnings:
 Warning	1292	Truncated incorrect innodb_lock_wait_timeout value: '0'
 ALTER TABLE t1 PARTITION BY HASH(pk);
 ERROR HY000: Lock wait timeout exceeded; try restarting transaction
+SET lock_wait_timeout=@save_timeout;
+SET innodb_lock_wait_timeout=@save_innodb_timeout;
 SHOW CREATE TABLE t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (

mysql-test/suite/innodb/t/alter_partitioned.test

@@ -18,10 +18,14 @@ INSERT INTO t1 (pk) VALUES (1);
 ROLLBACK TO SAVEPOINT sp;
 
 --connection default
+SET @save_timeout=@@lock_wait_timeout;
+SET @save_innodb_timeout=@@innodb_lock_wait_timeout;
 SET lock_wait_timeout=0;
 SET innodb_lock_wait_timeout=0;
 --error ER_LOCK_WAIT_TIMEOUT
 ALTER TABLE t1 PARTITION BY HASH(pk);
+SET lock_wait_timeout=@save_timeout;
+SET innodb_lock_wait_timeout=@save_innodb_timeout;
 
 SHOW CREATE TABLE t1;
 --connection con1