Version

globalxp-1.12.x-v1.4.jar
globalxp-1.13.2-v1.4.jar

Expected behavior

Blocks don't drop anything on destruction.

Actual behaviour

Issue title says it all, but just in case.

That's intended so you don't accidentally lose XP when you are in creative mode temporarily. The behavior for shulker boxes is the same.

I'll fix the block dropping when it's empty, though.

That's intended so you don't accidentally lose XP when you are in creative mode temporarily. The behavior for shulker boxes is the same.

I'll fix the block dropping when it's empty, though.

Yeah, that's what I thought at first.
As I remember, there's similar thing with capacitor from EnderIO, it saves its state as dropped item. but only if destroyed by player in survival.