Just an extra thought about mining/irrigating.
Consider a plain/desert/grassland with no direct connection to fresh water (trapped inside hills/mountains/toundra...), are we allowed:
- to mine (and work) it before electricity?
- to mine (and work) it after electricity (no should be the answer)?
Same question if the square is not completly trapped but require bringing water from 10 titles/ennemy territory (or other significant difficulties).
I also had the impression that in Conquest (1.15) you can irrigate through a city on hill (which was not possible in PtW), this can/should/must be used to bring water to trapped sector ?
-just an extra thought-
I also think you should be FORCE to remove mining ASAP from captured area as any change (like culture extension) will make the AI reorgonise your citizens without asking and therefore might be a nightmare to check that you are not in 'illegal' situation.
-end of extra thought-
PS. I didn't look at the save, so I have no idea if these questions are even relevant or not