frappe/erpnext — pull request #2140 by nathando (2014-09-03 07:03:45+00:00)
Title: get_item_list does not [item qty=0]

- By using `if not d.qty:` it totally limits the chance of creating an empty Delivery Note
- Should be changed to `if d.qty is None`

Use case for empty DN:
- Open a Delivery Note and tight to a specific Sales Order first without knowing the real qty at this point.
- Using barcode scanner to receive Sales Order to this DN (multiple times).