Spawner Minecarts do not render entity model

In modern versions of Minecraft, Spawners/Trial Spawners render the model for the entity they are configured to spawn inside them. However, this is not the case for the Spawner Minecart.

All of these are configured to spawn Zombies. However, as you can see with the Spawner Minecart in the screenshots, there is no Zombie model inside of it.

To reproduce this, use “/summon” to create a Spawner Minecart for your desired entity. When you look inside it, there will be no model. The Spawner Minecart will still spawn the mobs, however.