Spam due to not cancelling event on Forge

[SaltSouls]

Minecraft version information

1.20.1

Mod loader information

Forge

Mod loader version information

47.4.20

Mod version information

1.0.26

Expected Behavior

Right now it is currently spamming the console. This seems to be a related issue to the NeoForge counterpart; though either the issue was reintroduced at some point, or it was never fixed on the Forge version.

Actual Behavior

It is currently spamming the console with warning messages.

Reproduction Steps

Fly around in any biome where mobs are being replaced.

Screenshots & files

[00:23:04] [Server thread/WARN] [minecraft/ServerLevel]: Tried to add entity minecraft:zombie but it was marked as removed already
[00:23:05] [Server thread/WARN] [minecraft/ServerLevel]: Tried to add entity minecraft:zombie but it was marked as removed already
[00:23:05] [Server thread/WARN] [minecraft/ServerLevel]: Tried to add entity minecraft:skeleton but it was marked as removed already
[00:23:06] [Server thread/WARN] [minecraft/ServerLevel]: Tried to add entity minecraft:skeleton but it was marked as removed already
[00:23:06] [Server thread/WARN] [minecraft/ServerLevel]: Tried to add entity minecraft:zombie but it was marked as removed already
[00:23:07] [Server thread/WARN] [minecraft/ServerLevel]: Tried to add entity minecraft:zombie but it was marked as removed already
[00:23:07] [Server thread/WARN] [minecraft/ServerLevel]: Tried to add entity minecraft:zombie but it was marked as removed already
[00:23:07] [Server thread/WARN] [minecraft/ServerLevel]: Tried to add entity minecraft:zombie but it was marked as removed already
[00:23:09] [Server thread/WARN] [minecraft/ServerLevel]: Tried to add entity minecraft:zombie but it was marked as removed already
[00:23:09] [Server thread/WARN] [minecraft/ServerLevel]: Tried to add entity minecraft:skeleton but it was marked as removed already

[Faboslav]

On Forge, there is the same "fix"/"solution" applied as on neoforge, also on my local testing I don't have any of the warnings in the logs.

[SaltSouls]

On Forge, there is the same "fix"/"solution" applied as on neoforge, also on my local testing I don't have any of the warnings in the logs.

I will do more testing. It might be more mob variants, though I am unsure. I will check with the mod creator for that, as that would be the only other mod I have that would touch those specific mobs. I will link them to the other neoforge issue here, that way they can check if they are also properly handling event cancelling.