Fix php-version dependent typo "syntax error, unexpected token "\"
- Force global namespace for functions which are known to be optimizable to bytecode in php
- Fix {points} replacables in warning conversations was pulling from the wrong user, and ensure {staff}/{staff_user_id} replacables respect anonymized warning issuer configuration
Fix incorrect boolean check in anonymize warning conversation feature
Fix regression causing additional checkbox options when issuing a warning to always be selected