Zombie defaults turtle egg position to (0, 0, 0)

The bug

Zombies default their turtle egg position to (0, 0, 0) if they have not seen a turtle egg. This means if a turtle egg is present at the origin, then they will try to walk to that point no matter where they are in the world, which causes an amount of lag and causes weird behavior.

Steps to reproduce

• Go to the nether (where zombified piglins are abundant).
• Run

  /forceload 0 0
  setblock 0 0 0 turtle_egg
  fill 0 1 0 0 2 0 air

• Look around. Zombified piglins behave weirdly as they try to move toward a direction.