If bug:
When any block is placed above a snow layer, the snow layer will act as a full block (the player cannot walk through it).
This issue only occurs when thinnerBoundingBox is set to true.
This is mainly problematic when the above block is intangible, such as a sign, button, or vines.

• Forge Version:
  1.16.5 - 36.1.32

• Mod Version:
  1.16.4 - 2.5.7

• Can you reproduce this issue with relevant mods only?: yes/no
  yes

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