Axolotls use animation walking when swimming on blocks

Summary:
Axolotls use animation walking when swimming on blocks. This can often be seen in an ordinary environment of axolotls, but it is best to observe in water 1 block high.

Steps to reproduce:

1. Make a pool 1 block high.
2. Spawn an axolotl in it.
3. Take a bucket of tropical fish in your hand and walk on the pool.

Observed results:
Axolotle will "walk", and not swim in water in 1 block high.

Expected results:
Axolotle will swim, not walk in the water.

Video:
Java-1.mp4
Bedrock.mp4