ORA-00932 error on updating phpbb_log

Hi

When upgrading from phpBB 3.0.2 to 3.0.5 using the automatic installer we receive the following message during the database upgrade phase. We are using Oracle 10.2.

Updating data

Progress :: . . . . . . . . . . . . . Done
Result :: Some queries failed, the statements and errors are listing below.
[list: 3uu8jz5h]

• Error :: ORA-00932: inconsistent datatypes: expected - got CLOB
  SQL :: UPDATE phpbb_log SET log_operation = 'LOG_DELETE_TOPIC' WHERE log_operation = 'LOG_TOPIC_DELETED'

Manually running the SQL statement with = replaced with like against the database does not result in an error:

UPDATE phpbb_log SET log_operation = 'LOG_DELETE_TOPIC' WHERE log_operation like 'LOG_TOPIC_DELETED'

Thanks