Do cells completely reset and "clean up" after 72 hours...
...or after 72 hours *AND* the next time you revisit them?
For example...
Lets say you have a lot of clutter that you just want to get rid of. There are a number of ways to do this, such as giving it away to merchants (probably the best way), but lets say you have the "Bag of Holding" Mod, and you are in a dungeon, you just killed everything, cleaned everything up off of the floor (arrows, dropped weapons); and you want to use the opportunity to "clean up" your possessions.
So you pick a body, and stash a lot of yarn into it... clay pots, cups, pitchers, etc... 900 of the 1000 Iron Arrows you were carrying... calipers and so forth (maybe you picked them up accidently before, and now you just want to get rid of them)... 498 of the 500 Hourglasses you were carrying...
Now exactly WHEN is all of that junk cleaned up and removed from the save file?
After 72 hours?
Or after 72 hours **PLUS** your next visit to THAT cell?
I.E. do cells clean themselves up "in the background"?