Geodes can generate inside of each other

Amethyst geodes generate so frequently that they can generate inside of each other. Geodes being able to do this is not mentioned in any sort of changelog.

How to reproduce:

1. Generate a world with the seed 736346737306014324
2. Go to the coordinates -2594 42 1043
3. Change your gamemode to spectator and look down
4. You can see two geodes that generated inside of one another.