Treasure chests can be spawned in geodes

The Bug

When a geode spawns in the ocean, there is a small chance that a floating treasure chest will spawn.

Reproduce

Seed: -7229236848369415506
/tp @s 118 51 247 -55.4 24.1

Expected Behavior:

The expected behavior would be that amethyst geodes are not able to generate over buried treasure.