Chicken Jockeys and Skeleton Traps entity-spawn not denied properly
GD 1.4.7, SF 1.12.2-2838-7.2.4-RC4072.
With entity-spawn #monster false monsters in the claim don't spawn, as expected.
But if a chicken jockey spawns - the baby zombie riding it can't be seen or interacted with, but the chicken attacks you.
Same problem with the Skeleton Trap - only that those skeleton horses also shoot arrows.
It seems like, even though the entity spawn event is cancelled - that entity is still a passenger, so it technically still exists and can do stuff like hurt players.
GDdebug for this shows that chicken spawn is allowed and baby zombie spawn is denied, but that chicken still behaves like a baby zombie is riding it.
Or its really just a special chicken that attacks, and the zombie ontop is just one part of the model of that special chicken. And even if the zombie is missing, the chicken is still programmed to attack.
I should have noted when I saw this earlier, that this behaviour existed on Sponge GP as well. It was alarming at first being chased by a chicken making zombie sounds...