Issue description:
Right clicking in air with a space chamber card will cause the item forms of certain types of blocks to drop.
Steps to reproduce:
Set up of 7 Space chamber corner blocks, and 1 controller around the items to dupe. Right click the control with a wrench and the card to link it. Right click in the air and the blocks may drop (be careful a large chamber with lots of blocks and rapid right clicking creates alot of items very quickly). From some very limited testing this does not apply to every type of blocks. I was unable to dupe stone, and several other vanilla blocks but I was able to dupe all of the components for an Extreme Reactor turbine, several nuclearcraft machines and several chisel blocks.
I am using the Enigmatica 2 Expert pack version 1.10 with optifine added
Versions:

• Minecraft: 1.12.2
• Forge: 14.23.2.2623
• CompatLayer (only if on Minecraft 1.10 or 1.11):
• McJtyLib: 3.0.2
• RFTools: 1.12-7.30