Before this rev., when the user opened a form view
containing a pad widget, with a pad url already configured,
a dialog directly popped asking "The record has been
modified, your changes will be discarded. Are you sure you
want to ?".
This is because of an unconventional behavior of this
widget: the field actually encodes an url, the one of the pad
to display. When the user saves, a write is forced so that
the server can retrieve the pad's content and store it in DB.
To force the write, the widget always notifies a fake change
on the url. However, we don't want this change to trigger
the confirm dialog. With this rev., this fake change doesn't
make the record 'dirty'.
Adrien Dieudonne
3a886327a6