Unclosed polygons in draw widget viewed as closed

[aproposinfosystems]

Right now you can draw and save an incomplete polygon and it won't close it automatically but will display it as closed if you view an unclosed feature. By unclosed I mean the first point is not duplicated and it would be sent as a series of points where the first last points are not duplicates.

Ideally on saving the user should be prompted to close it or store as line like the trace widget. Display should then show as line not as polygon.