Issue: once a chunk has no entities they refuse to respawn after 10 minuets with chunk render at 8 couldn't find any entities

Steps to reproduce 1.9-1.12.2 && 1.13 pre5:
create super flat world
render 8 distance
/difficulty peacefull
setup command block to run on tick /kill @e[type=!player]
after 30 seconds break command block
put pillar up 30-40 blocks
wait 
No passive mobs respawn 5 minuets
Relog
if < 1.13 No passive mobs respawn 5 minuets else fixes itself but, takes 5-7 minuets to do so

1.8.9 comments:
in 1.8.9 this bug isn't able to reproducible because in about 1-3 minuets the passive mobs respawn rather then 5+ minuets with nothing.

SnapShot Notes:
I was able to reproduce this bug on 1.13 pre 5 was able just make sure the chunks are completely empty of all entities first and don't relog or it will fix itself eventually if you relog