'minecraft:snow' block stopping the redstone trail

Hello, I've noticed the bug.
As the screenshots show it only works (Or isn't working as its the bug) with "going down" redstone on the 'Minecraft:snow' (full) block. (It is normally working on 'Minecraft:snow_block').
So in the longest shortest description: Redstone is not charged after contacting the snow so it can't reach the piston to make it raise.
(Note: It is really important to use the 'minecraft:snow' [the one that you need to place 8 times to create a block to recreate the bug])