When a non-experimental world is loaded with a spawner minecart containing disabled mobs, the spawner minecart will not be removed from the world

When a non-experimental world is loaded with a spawner minecart containing disabled mobs, the spawner minecart will not be removed from the world.

Reproduce:

1. Download the structure file.
2. Place the file in the non-experimental world folder.
3. Loading minecraft:spawner_minecart to the world using structure blocks.
4. Use the following command:

   /data get entity @e[type=minecraft:spawner_minecart,limit=1,distance=..3]
   

5. Notice that the disabled mob IDs(SpawnData:{entity:{id:"minecraft:camel"}}) in the spawner minecart are not cleared.

Or

1. Download the world file.
2. Use the following command:

   /data get entity @e[type=minecraft:spawner_minecart,limit=1,distance=..3]
   

3. Notice that the disabled mob IDs(SpawnData:{entity:{id:"minecraft:camel"}}) in the spawner minecart are not cleared.

It also causes the game to output spam.

22:47:34.081
bdv
Server thread
Skipping Entity with id minecraft:camel
22:47:50.631
bdv
Server thread
Skipping Entity with id minecraft:camel