Add missing num_items column values in open basket CSV report generator (#3462)
Add missing num_items column values in open basket CSV report generator (#3462)

Co-authored-by: Andrea Ciantelli <9953dcdf00f6c8c94c480d47ecfd8f723d807da3@dunbar.it>
django-oscar/django-oscar,solarissmoke/django-oscar,solarissmoke/django-oscar,solarissmoke/django-oscar,django-oscar/django-oscar,django-oscar/django-oscar,django-oscar/django-oscar,solarissmoke/django-oscar