It is really surprising how plants can survive in cold temps with seemingly no moisture. I've even had seeds sprout in pots of soil that I would have sworn were way way to dry for a seed to germinate. Since all you need is for the bulb to have minimal dehydration, there is really no need for free liquid water to exist inside the bag in the fridge. I've learned this the hard way, as more and more I am overwintering questionably winter hardy plants and bulbs in the fridge, until I have enough to test outside. Oh my goodness, I just remembered I've accidentally left my calochortus seedlings outside!
Off to rescue them!
