Hi Jean-Luc,
tons of thanks for your report. You were right! That annoying bug was really there (and, for sure, causing problems to the scheduled course backup utility).
Now it's fixed, both in 1.6.1+ and 1.7dev.
Thanks again, ciao, Eloy
Backup and restore
backup_scheduled.php, schedule_backup_course_configure(), set the backup preferences
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