Add check for end_date
Add check for end_date

Add check for expiring vouchers in test_checkout_discount_form_active_queryset_after_some_time.

maferelo/saleor,UITools/saleor,mociepka/saleor,maferelo/saleor,UITools/saleor,maferelo/saleor,mociepka/saleor,UITools/saleor,mociepka/saleor,UITools/saleor,UITools/saleor