Legit two-device sync
OK, serious question. I have two devices and will be using both for a while. What is the Rovio-approved way to sync between them? Both devices are Android phones, run the latest software, and are connected to Facebook.
It's 2018 and I would have thunk when you 'log in' at the beginning of the game your profile etc are pulled in along with your earthly possessions like spells etc. Of course we know how well that ended up, with clones, infinite spells, sync tricks, etc.
Is there a proper way to use both devices legitimately?