Barrel cactuses drop one less cactus than they are supposed to

[thelegitdolt]

Age 0 will drop 1 cactus Age 1 will drop 1 cactus Age 2 will drop 2 cactus Age 3 will drop 3 cactus

This will cause barrel cactuses to be deleted when you bone meal/place them

Instead, barrel cactuses should drop equal to their age + 1