Lua: cell:getAll() adds cell data to the save file
Using the getAll() method on inactive cells increases the save file size, but this only happens after the engine advances time, such as during sleep, waiting, or transport use.
## Steps to Reproduce
In the in-game console:
```
luag
for _, c in pairs(world.cells) do c:getAll() end
exit()
```
Then sleep or wait, and create a save.
issue