Bug/Exploit: Undo actions

Reproduce:
Hit return button (exit game) => relaunch game => continue

Result:
Actions since arrival to system will be undone

Test:
I was testing if it was possible to not have to pay fuel for take off by exiting the game.

The game is saved each time you reach a new system. If the game shuts down or crash, you can continue the game from the last save.
It's a possible exploit but you need to redo all the actions you did in the system. Which is not very fun.

I have found that it can actually send you back several systems. Perhaps the save function isn't quite working properly.