[PD] Reason for different keyboard behavior of vanilla numberbox and nbx (Number2)

[Lorenzo Sutton]

Does anyone know what the reason is for the vanilla number box and the 
nbx (Number2) have different behaviors with re. to keyboard input:

- numberbox, Click on number box enter a number press RETURN: number is 
set. Enter another number press RETURN, new number is set etc. until the 
numberbox loses "focus".
- Number2. Click on Number2, enter number, press RETURN: number is set. 
Try to enter another number, nothing happens. Press RETURN: 0 is set as 
value.

This has always puzzled me, but there may be a good reason I'm missing.

Thanks,
Lorenzo.