How can I enter a Delivery on an arbitrary date? Imagine all delivery orders are entered once a week. The actual date of the delivery is entered at that time. As far as I can tell, the delivery date is always set to the day on which the delivery is entered into the system. Is there a setting that can be changed to correct this? Or, is this a bug?

I've tested all the dates in and below the Delivery Order and even though they are editable while the DO is open they then get reset to the current date when the DO is closed. What's the point of making them editable if they are reset?