Default last_result of callable steps must be integer instead of false

https://github.com/phpbb/phpbb/blob/develop/phpBB/phpbb/db/migration/data/v310/notification_options_reconvert.php#L23
PostgreSQL throws error on updating database.

General Error
SQL ERROR [ postgres ]

ERROR: syntax error at end of input LINE 4: LIMIT 250 OFFSET ^ []

SQL

SELECT user_id, user_notify_type, user_notify_pm FROM phpbb_users ORDER BY user_id LIMIT 250 OFFSET

BACKTRACE

FILE: (not given by php)
LINE: (not given by php)
CALL: msg_handler()

FILE: [ROOT]/phpbb/db/driver/driver.php
LINE: 803
CALL: trigger_error()

FILE: [ROOT]/phpbb/db/driver/postgres.php
LINE: 197
CALL: phpbb\db\driver\driver->sql_error()

FILE: [ROOT]/phpbb/db/driver/postgres.php
LINE: 252
CALL: phpbb\db\driver\postgres->sql_query()

FILE: [ROOT]/phpbb/db/driver/driver.php
LINE: 163
CALL: phpbb\db\driver\postgres->_sql_query_limit()

FILE: [ROOT]/phpbb/db/migration/data/v310/notification_options_reconvert.php
LINE: 55
CALL: phpbb\db\driver\driver->sql_query_limit()

FILE: [ROOT]/phpbb/db/migration/data/v310/notification_options_reconvert.php
LINE: 37
CALL: phpbb\db\migration\data\v310\notification_options_reconvert->perform_conversion()

FILE: (not given by php)
LINE: (not given by php)
CALL: phpbb\db\migration\data\v310\notification_options_reconvert->convert_notifications()

FILE: [ROOT]/phpbb/db/migrator.php
LINE: 451
CALL: call_user_func_array()

FILE: [ROOT]/phpbb/db/migrator.php
LINE: 397
CALL: phpbb\db\migrator->run_step()

FILE: [ROOT]/phpbb/db/migrator.php
LINE: 241
CALL: phpbb\db\migrator->process_data_step()

FILE: [ROOT]/phpbb/db/migrator.php
LINE: 196
CALL: phpbb\db\migrator->try_apply()

FILE: [ROOT]/phpbb/db/migrator.php
LINE: 147
CALL: phpbb\db\migrator->try_apply()

FILE: [ROOT]/install/database_update.php
LINE: 214
CALL: phpbb\db\migrator->update()