Updating database fails in migration v310/avatar_types.php

General Error
SQL ERROR [ mysqli ]

Truncated incorrect DOUBLE value: 'avatar.driver.gravatar' [1292]

SQL

UPDATE phpbb_users SET user_avatar_type = 'avatar.driver.upload' WHERE user_avatar_type = 1

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/mysqli.php
LINE: 181
CALL: phpbb\db\driver\driver->sql_error()

FILE: [ROOT]/phpbb/db/migration/data/v310/avatar_types.php
LINE: 46
CALL: phpbb\db\driver\mysqli->sql_query()

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

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: 147
CALL: phpbb\db\migrator->try_apply()

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