LP:657294 - Replication breaks when upgrading to MariaDB from MySQL 5.0

When upgrading a MySQL 5.0 master to MariaDB 5.1, replication breaks on the
slave(s):

Last_Error: Error 'Table 'tablename' already exists' on query. Default database:
'greylist'. Query: 'RENAME TABLE `#mysql50#tablename` TO `tablename`'

The RENAME TABLE shouldn't be replicated.

To reproduce,

• start MySQL 5.0 server with binary log enabled;
• create table `t-t` (i int)
• stop server;
• start MariaDB server on the same datadir;
• run mysql_upgrade;
• grep binary log for 'rename'