Arrows in bamboo stay if you log out before they despawn

When you, or any entity, fires an arrow and it hits bamboo  if you log out before the arrow despawns when you log back in the arrow has a blue potion effect on it and no longer despawns ever.

I have a ton of them around my base on the realm i play in, and its easy to reproduce.

plant some bamboo, fire an arrow into them, log out. Logging back in the arrows should have blue particle effects and never despawn.

I think the arrows become the uncraftable tipped arrows?