don't worry it's an MV
I seriously don't know why we the public tolerate this crap just to have an exclusive brand. Pay more...get less...makes no sense. Sorry to hear. That is why I won't buy a bike with a plastic gas tank ever again. Too much of a PITA if you don't have easy access to ethanol free fuel.
You would think MV would pay attention to what has happened with the ducati and aprilia tanks seeing as how this is a problem that has been apparent since before the MY10+ bikes came out.