Wolves and ocelots seem to be lost when chunk is unloaded.

Steps to Reproduce:
1. make an enclosed space. summon wolf or ocelot
2. walk away until chunk is unloaded, then return
3. spawned creatures have mysteriously disappeared

First spotted on wolves in fresh generated chunks, confirmed via console spawned creatures. Does not seem to affect pigs and cows. Probably related to MC-38093, but that one has screwed up description..