When the sql-mode contains STRICT_ALL_TABLES or STRICT_TRANS_TABLES mysql_tzinfo_to_sql is not properly working because of the following statement
with the following error message
ERROR 1105 (HY000) at line 146984: ORDER BY ignored as there is a user-defined clustered index in the table 'time_zone_transition'
This could be releated to
MDEV-18778 (but I am not quite sure)