Bug: Attempting to delete a world that is loaded in the world previewer crashes the game

[kodadacod]

What Feature Types Apply to This Bug?

System

Other Type

No response

What Type of Bug Is This?

Crash

Mod Loader

NeoForge

Mod Loader Version

21.3.95, 21.4.156, 21.8.52

Cumulus Version

1.21.3-2.0.4, 1.21.4-2.0.6, 1.21.8-2.0.8

Is This Bug a Conflict With Another Mod?

No response

Client Log

No response

Crash Report (if applicable)

https://gist.github.com/kodadacod/25e2a89173dc1d59d532280cad5d9765

Steps to Reproduce

Every time

1. Create a new world (or load an existing one)
2. Save and exit from world
3. Delete the world while the world is loaded

What You Expect To Happen

The game would delete the world and not crash

What Actually Happened

The game did not delete the world and crashed

Additional Details

No response

Please Read and Confirm The Following

• I have confirmed this bug can be replicated without the use of Optifine.
• I have confirmed this bug is on the most recently supported version of Minecraft.
• I have confirmed the details provided in this report are concise as possible and does not contained vague information (ie. Versions are properly recorded, answers to questions are clear).
• I have confirmed this issue is unique and has not been reported already.
• If playing on a modpack, I have reported this issue to their issue tracker already.