An error on http://www.bacula.org/5.2.x-manuals/en/main/main/Configuring_Director.html:
Cancel Lower Level Duplicates = yesno
If Allow Duplicates Jobs -- notice an incorrect 's' at the end of 'Duplicates'

Another issue is about directive 'Reschedule Interval' - it's written that "If no interval is specified, the job will not be rescheduled on error", but to my experience it is not true, in that case there is a default interval of 1800 seconds: "Rescheduled Job ... to re-run in 1800 seconds". Or is the last statement true only for Bacula Enterprise?