Fixes to work with DEBUG_CONTAINER

Because of these commits:
https://github.com/phpbb/phpbb/commit/22090dc3a3280d043ff5e77212ee7229b5eb0d24
https://github.com/phpbb/phpbb/commit/03667081e1d0a33e7867e9e261044369c45dd8ad

Not sure if it should be set to TRUE or FALSE though