Yesterday I tested it on purpose, going up and down some twisty hills (gas station on the bottom) to run it "dry". Stopped 19 miles after the light.
To be on the safe side I practice what you do, VeryMetal, but it's going to happen again regardless.
What pisses me off is that Ducati says 3 liter reserve when it's not more than 1.5. I understand about the need to stop the bike before it tries to run on air, but 1.5 liters seems overcautious