* Cleans up a mistake in SSair init (#69831)
Ok so in linda turfs use current_cycle to tell if they've been visited
by process_cell yet.
In a recent pr of mine, I expanded its use to init, so I could make sure
we don't double visit tiles.
However, I did this in such a way that it could in theory overrun into a
number that you might find in ssair. So I've changed the logic to make
it decrement, so it's safe in the worst case
* Cleans up a mistake in SSair init
Co-authored-by: LemonInTheDark <58055496+LemonInTheDark@users.noreply.github.com>