Fiddlertx4, no maybe about it. It's a universal condition among two lungers that the carb needle won't hold a tank of gas from going on into the engine overnight, AND that the rings aren't any more gastight than they are watertight, oiltight or even airtight, so of course the tank full of gasoline winds up in the crankcase.
To my knowledge all two lunger owners have done this at least once but they tend to not do it very often. Turning off the supply valve is the cheap fix most people choose. I go one further, I open the valve, drain all of the gas, take off the sediment bowl, open up the drain on the carb for a couple of days, and then put it all back together so that I don't have any gum set up anywhere next time I want to use it. No matter how long it sits, which might be years.