The tail of invisible tadpoles doesn't render when viewed from certain angles

The tail will not render when viewed in spectator mode, or when the entity is on the same team as the player.

Steps to Reproduce:

1. Spawn a tadpole

2. Make it invisible:

   /effect give @e minecraft:invisibility infinite

3. Change gamemode to spectator

Observed Behavior:

The tail of the tadpole will not be visible when looking at the left-hand side of the entity:

Expected Result:

The tail would be visible at all times, regardless of the entity's effects, or the gamemode the player is in:

Possible Fix:

Add a 'backside' to the texture of the texture of the tadpole's tail. Here is a resource pack which demonstrates this fix (could cause z-fighting):

Notes:

Related to other 'invisible entity rendering' issues:

MC-269733 MC-256648 MC-256566 MC-253461 MC-271226 MC-271229 MC-271231 MC-271236 MC-271227 MC-271237 MC-271306 MC-271511 MC-271233 MC-271512