Iron golems produce walking particles for barrier blocks

The Bug

When anything other than iron golems walk on barriers, walk particles don't appear. This makes sense since the block is invisible. What doesn't make sense is the fact that when an iron golem walks on a barrier block, red walk particles appear when I don't think they should.

Steps to Reproduce

1. Switch into creative mode, give yourself some barriers, and place them down.

   /give @s minecraft:barrier
   

2. Summon an iron golem on top of the barrier blocks and wait for it to begin walking.
3. Take note as to whether or not iron golems produce walking particles when traveling over barrier blocks.

Observed Behavior

Iron golems produce walking particles when traveling over barrier blocks.

Expected Behavior

Iron golems would not produce walking particles when traveling over barrier blocks.