Versioning
Forge 1.20.1-47.3.0
Multi Mine 1.20.1.4
Malum 1.6.5.1

What did you do

1. Add "malum:spirit_jar": true as a banned block in Multi Mine's config
2. Attempt to create a new world or enter an existing one

Expected behavior
I expect to be able to join a world with no crash, and Malum's spirit jar will be exempted from Multi Mine's changes, i.e. it will instantly be "repaired" when it's no longer in the process of being broken.

Screenshots/Video
crash-2025-02-09_18.17.14-server.txt

JsonSyntaxException: duplicate key: malum:spirit_jar

The error message is pretty explanatory, no? You try to blacklist it twice and violate json rules

OH! I didn't think there was already a key in the list, and it didn't click with me to check if there was already one. Whoops