Rain doesn't extinguish burning arrows stuck in certain partial blocks

The Bug

Burning arrows aren't extinguished by rain if they are stuck in pressure plates, trapdoors, lanterns, etc.

Steps to Reproduce

• Obtain a bow enchanted with flame.

  /give @s minecraft:bow{Enchantments:[{id:"flame",lvl:1}]}
  

• Place down a pressure plate and shoot an arrow on top of it using the flame bow.
• Set the weather to "rain".
• Take note as to whether or not flaming arrows are extinguished by the rain when shot on top of pressure plates.

Observed Behavior

Flaming arrows aren't extinguished by the rain when shot on top of pressure plates.

Expected Behavior

Flaming arrows would be extinguished by the rain when shot on top of pressure plates.