Created attachment 66672 [details] Card Number is blank but field is required. When adding a new patron, I leave the Card Number field blank so that Koha can auto-generate a new card number. However, when pressing save the card number is not filled in an a warning "This field is required" comes up.
removed "cardnumber" from the system preference 'BorrowerMandatoryField'
It is actually a duplicate of bug 18636 *** This bug has been marked as a duplicate of bug 18636 ***