I'm a druid/wizard and our party is trying to do some underwater spelunking. I cast the Water Breathing ritual, so we can all breathe underwater for 24 hours. After a few hours of adventuring we've been beat up pretty badly, so I proposed that we rest in Leomund's Tiny Hut. Since it lasts for 8 hours, we would be able to be protected for the duration of a long rest. The question remains, though: what happens underwater with Tiny Hut? The only real guidance comes from this line:
The atmosphere inside the space is comfortable and dry, regardless of the weather outside.
Would the hut empty itself of water? If it stayed water-logged, would we still be able to complete a long rest, since we could breathe?