Minecraft PE - No sound is played when witch drinks a potion

When a witch drinks a potion after being hit by a player/after getting fire/if she walks too slow (to get Swiftness) etc., no sound is played.

Steps to reproduce:

1. Find a witch or if you haven't found one, spawn her.
2. Hit her with bare hands or with a sword, or with anything else
3. The witch will drink an Instant Healing potion, but she won't make a sound. In versions which are older than 1.1.0.9, this bug doesn't exist.

Phone: Lenovo A328