The game stalls when rejoining worlds that were in the process of running tests

The Bug:

The game stalls when rejoining worlds that were in the process of running tests.

Steps to Reproduce:

1. Run multiple tests by using the command provided below.

   /test run minecraft:always_pass 100 true 1 1

2. Quickly exit the world and attempt to rejoin it.

Observed Behavior:

The game stalls and the world loading screen gets stuck on 100%.

Expected Behavior:

The game would not stall.