Using a thermal crescent hammer on any chest or barrel results in duplicating.
https://www.curseforge.com/minecraft/mc-mods/thermal-expansion

thermal_expansion-1.18.2-1.6.3.13

compact_storage-5.0.1-1.18.2

this will be fixed in a new build tomorrow

thank you :D

There we go, versions pushing up to Curseforge now as 5.0b2-LTS