[MC-118464] Ocelots spawn with peaceful as difficulty after reopening the world

The bug

Based on MC-1788 ocelots should not spawn if Peaceful is set as difficulty. However when reopening a world with Peaceful as difficulty they will spawn.

How to reproduce

Create a Superflat world with the following preset
```
3;minecraft:grass;21;
```
Set the difficulty to Peaceful
Kill all other currently existing entities
```
/kill @e[type=!player]
```
Wait some time
→ You should not see any ocelots spawning
Reopen the world
→ Ocelots start spawning despite the fact that the difficulty is still Peaceful

Linked issues

relates to 1

MC-118382 Parrots do not respawn Resolved

Comments 6

Super TNT 2017-06-08T20:34:56Z

I get ocelots spawning in the testing world i have just not parrots or do oyu mean in peaceful which i aint tried?

bemoty 2017-08-17T15:44:44Z

Can confirm for MC 1.12.1.

Oval 2018-09-16T16:48:34Z

Cannot reproduce for 1.13.1. Can anyone else try to reproduce?

EDIT: Can reproduce with preset @unknown provided, didn't know about that.

wobst.michael 2018-09-16T17:23:34Z

Can't reproduce in 1.13.1 with that preset as ocelots don't seem to spawn anymore at that height. They now only appear to spawn at sea level or higher as described on the wiki. So basically I'm still able to reproduce this issue in 1.13.1 with that preset here:

69*minecraft:grass_block;minecraft:jungle;

But what's interesting, unrelated to this ticket here, parrots don't spawn for me anymore with these jungle superflat presets in 1.13.1 when they did in 1.12. I wonder what has changed in this regard.

TheGabro 2020-04-23T15:25:27Z

seems to be fixed in 20w17a

j_p_smith 2020-08-08T18:30:58Z

Cannot reproduce in 1.16.1. Ocelots won't spawn in peaceful mode (but will on other difficulties), and relogging has no effect on this.