Modpack version
Enigmatica6 v0.5.8

Describe the bug
Spawn and claim protection does not protect against editing Supplementaries signs on our server. Also, breaking a safe from this mod gives you a copy of the safe to include contents both on the server and in single player. No additional mods were added and I have not tested this on older versions of Enigmatica6.

Steps to reproduce
Place safe, add contents, lock with key from Supplementaries mod then break with pick axe (survival mode)

Screenshots
Here's a GIF of the safe duplication -
https://gfycat.com/sorrowfulthickcalf

Partly duplicate of #2833
Thanks for the other part of the report :P