Baby zombie legs clip through heads of mobs they are riding

I am able to confirm this but I'm unsure as to whether this is an issue or not. Also affects 21w38a. Here are some additional details regarding this.

The Bug:

The legs of baby zombies go through the heads of entites they are riding.

Steps to Reproduce:

• Summon a baby zombie riding a skeleton.

/summon minecraft:skeleton ~ ~ ~ {Passengers:[{id:"minecraft:zombie",IsBaby:1b}]}

• Look at the baby zombie's legs.

• → ❌  Notice how the legs of baby zombies go through the heads of entites they are riding..

Expected Behavior:

The legs of baby zombies would not go through the heads of entites they are riding.

Thank you