Snow layers do not fall when the block under them is removed.

Partner Rank: 3
no work around is known

Verification builds:
1.17.20.22 Win10

Summary:
Snow layers do not fall when the block under them is removed.

Impact:
impacts infinity skyblock and vanilla survival. causes floating snow layers which looks bad

Repro Steps:

1. create a new world
2. place a full block such as sea lantern
3. put a block of snow_layer on top of it
4. break the full block

Observed Results:
the snow layer floats in the air

 Expected Results:
the snow layer should fall according to gravity

Screenshots/Videos attached: yes

Regression Build:

1.17.20.21