Powder snow can be placed in the same space as non-full blocks

Summary:
Powder snow can be placed in the same space as non-full blocks.

Steps to Reproduce:

1. Place a non-full block (e.g a fence);

2. Place a powder snow block in the same space as the fence, while pointing at an adjacent block.

Observed Results:
Powder snow can be placed in the same space as the fence.

Expected Results:
Powder snow should not be able to be placed in the same space as non-full blocks.

Video:

Blocks that can coexist with Powder Snow:

• Slabs

• Stairs

• Fences

• Fence gates

• Walls

• Signs

• Item frames

• Paintings

• Doors

• Trapdoors

• Iron bars

• Glass panes

• Ladders

• Brewing stands

• Vines

• Redstone repeaters

• Redstone comparators

• Levers

• Lanterns

• Daylight sensors

• Hoppers

• Flower pots

• Pressure plates

• Banners

• Bells

• Enchantment tables

• End portal frames

• Rails

• Campfires

• Carpets

• Cacti

• Chests

• Buttons

• Scaffolding

• Tripwire hooks

• End rods

• Conduits

• Mob heads

Blocks that get destroyed by Powder Snow:

• Twisting vines

• Weeping vines

• Flowers

• Torches

• Sweet berry bushes

• Crops

Notes: This behavior closely mimics waterlogging, every block gets affected in the same way.