setPedAnimation() messes up collisions of peds inside vehicles

[Einheit-101]

Describe the bug
This bug seems to be as old as MTA, but i recently discovered this after investigating some bug reports of my server. People told me that some players in vehicles can not be killed and shots go right through them.
Specifically, i have some vehicles where i use setPedAnimation() to change the way how these peds are sitting in the vehicle.

To reproduce
-Go to editor
-Create a bike (ID 509)
-Stand on top of the bike and execute:
srun veh = getPedContactElement(me) boi = createPed(0, getElementPosition(me)) warpPedIntoVehicle(boi, veh) setPedAnimation(boi, "ped", "idle_stance", -1, true, true, true, false)
-Try to shoot dat boi with a weapon, notice how you cant hit him

Expected behaviour
Shots should hit dat boi

Multi Theft Auto v1.5.6-release-16632

[StifflersMom]

YEAH! This affects realdriveby in many ways. We blocked realdriveby with bikes a few days before because more and more players reported "hacks" with players, which are immortal. Checking it, there were no "hacks" of course, they were using a weapon and realdriveby ...