It's the sum of a value from the lines PLUS some bits
In the GUI (and in SAO) the total gets updated while filling a line only with the value from said line
The further bits get acconted for only after saving the Bolletta.
I suppose that the javascript layer updates the total field generically summing on the client side
The complete calculation gets done on the server, after saving
Is there a way I could make the GUI showing the properly updated values while editing a line ?
Thanks in advance