Game crashes due to block removal with the mod "MineCollapse"

[romordz]

Context

The crash happens during normal gameplay when a block is removed from the world
and Sable intercepts the block change event. It crashes while processing the
voxel neighborhood state.

This has been reproduced with two different triggers:

1. Mod "MineCollapse" 2.0.0 triggering a landslide (LandslideRecipe.tryLandslide)
2. Vanilla leaf decay (LeavesBlock.tick) — no MineCollapse involved

This means the bug is not specific to MineCollapse. Any block removal can
trigger it, including completely vanilla behavior.

Crash Report

• First crash (MineCollapse): https://mclo.gs/kaOJ9ZI
• Second crash (leaf decay): https://mclo.gs/fSLGAOC