1.18.30+ Snow_layer was mistakenly destroyed or retracted

In some direction snow layer will be destroyed unlike the sand or concrete powder

How to reproduce:

1. Place sticky pistons in different direction and control them by lever
2. Active the lever, then put the snow_layer on the slime blocks
3. Deactive the lever and observe if the snow be destroyed

Maybe this change cause bugs (1.18.30)

• Top Snow no longer clips with the block beneath when falling