Foxes don't get stuck on powdered snow

Not sure if this is intentional or not but when I spawn a fox with chickens inside powdered snow and they didn't get stuck
Steps to reproduce
1.-Make a pool of powdered snow
2.-Spawn a fox
3.-Spawn chickens or rabbits inside of powdered snow
4.-Observe, make sure the fox jumps in
Observed results
The fox didn't got stuck
Expected results
The fox should be stuck, just like in normal snow