Name Tag can be stacked

Hi, Mojang

Lately I did some stuff in my survival world - had no place in inventory and i had 2 name tags, somehow I got them bothin 1 slot : They stacked!? Yeah, and I could get it out to my Inventory I remember it stayed stacked, I could even split it. But I didn't : Need to do more research for this Issue. The problem was fixed when I named 1 of them. (If you wanna know, I named it for my Zombie "Zombie : The Slaughterer" 😂) 

Good luck, 

Arano.