So I was shooting tamed wolves with an infinity bow in creative and the arrows damaged the tamed wolves and passed through them. This does not occur with untamed wolves.

Steps to Reproduce:

1. Spawn and tame a wolf
2. Shoot it with a bow or crossbow

Observed Results:
The arrows damage and pass through the tamed wolf.

Expected Results:
The arrow should disappear upon damaging the tamed wolf.

Video:
Minecraft 2021-01-09 10-49-11.mp4