I confirm this too:
""" mysql> insert into t values (null, 'x', now()); Query OK, 1 row affected, 2 warnings (0.00 sec)
mysql> drop table _t_new; Query OK, 0 rows affected (0.00 sec)
mysql> insert into t values (null, 'y', now()); ERROR 1146 (42S02): Table 'pt_osc._t_new' doesn't exist """
I confirm this too:
"""
mysql> insert into t values (null, 'x', now());
Query OK, 1 row affected, 2 warnings (0.00 sec)
mysql> drop table _t_new;
Query OK, 0 rows affected (0.00 sec)
mysql> insert into t values (null, 'y', now());
ERROR 1146 (42S02): Table 'pt_osc._t_new' doesn't exist
"""