Fix: Date was not updated when the bill was printed.

barker/barker/routers/voucher/update.py

@@ -71,6 +71,8 @@ def update_route(
                     status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
                     detail="Internal error, reprints should not reach here",
                 )
+            if item.voucher_type == VoucherType.KOT and voucher_type != VoucherType.KOT:
+                item.date = now
             item.voucher_type = voucher_type
             item.user_id = user.id_
             item.last_edit_date = now