Multiple Greens Required
Multiple green cards act in two different ways depending on how the lock was set up:
If the lock was set up with only 1 green than it will require only 1 green to unlock, even if more greens were added by your keyholder.
If the lock was set up with more than 1 green card then it will require all of the greens to be found before it unlocks, even if more greens were added by your keyholder. So for example if the lock start with 3 greens it becomes a lock that requires multiple greens to be found, and all 3 would need to be found. If however the keyholder adds another 2, making it 5 greens then all 5 greens will need to be found.
If there’s 4 greens in the deck and you’ve revealed 2 of them and then reveal a reset card, the 2 you’ve found go back into the deck or discarded (depending on the number of greens the lock started with) and then you have to find them all again.