Was walking around on my server and found a chunk bug, there was one creeper that proceeded to rapidly duplicate causing massive server lag and console spam.

What I expected to happen was...:
not this!!!

What actually happened was...:
see images

To reproduce:
1. find a chunk bug
2. hope there's an entity in it/ spawn one in
3. entities duplicate.

Currently seen zombie, creeper, eggs, raw chicken all on the same server.
All mobs have currently been on the chunk border when they duplicate.
Console output:
[00:10:41] [Server thread/ERROR]: Wrong location! wb['item.item.chickenRaw'/11877910, l='world', x=7222.00, y=66.13, z=-2142.43]
[00:10:41] [Server thread/ERROR]: Wrong location! wb['item.item.egg'/11878001, l='world', x=7214.44, y=41.13, z=-2154.44]
[00:10:41] [Server thread/ERROR]: Wrong location! wb['item.item.egg'/11878002, l='world', x=7214.44, y=41.13, z=-2154.44]
[00:10:41] [Server thread/ERROR]: Wrong location! wb['item.item.egg'/11878003, l='world', x=7214.44, y=41.13, z=-2154.44]