I tryed also like this: I summoned an armor stand holding a stone block and I took from the armor stand by right clicking. I used entitydata to change only its name in the chat. It returned me HandItems:[0:{id:minecraft:air}] . Then I didn't fill in with air but it detects air.
I tryed also like this: I summoned an armor stand holding a stone block and I took from the armor stand by right clicking. I used entitydata to change only its name in the chat. It returned me HandItems:[0:{id:minecraft:air}] . Then I didn't fill in with air but it detects air.