Spawner minecarts displayed mob/particle is offset

The bug

The pig and particles within the minecart spawner is offset from the center of the displayed spawner, showing as rotating about an axis located at a corner of the displayed spawner.

To Reproduce:

1. Run 

   /execute align xyz run summon minecraft:spawner_minecart ~0.5 ~1.9 ~ {SpawnData:{entity:{id:"minecraft:bat"}},NoGravity:1b}

1. Notice the particles are offset.

Code analysis

Code analysis by Marcono1234 can be found in this comment and this comment.