Java 6-9. Windows 7.
Well, I was messing with crafts in vanilla and then this happened:
At first, after crafting the totem of undying (i tried both 2 and 1 totem of undying) all recipe components duplicated (but only graphically), after touching any of them they return into a normal state.
Here is the code, that I used to create the recipe:
The recipe is called totem_of_undying.json
I created it in Sublime Text program.
Then I placed in in the directory C:/Users/Татьяна(My Russian Username)/AppData/Roaming/.minecraft/saves/My datapack testing world/datapacks/multivanilla_plus_plus/data/uncraftable/recipes
(I was doing it all while my minecraft was open)
Then I executed a command /reload and it gave me the error in chat:
And then the things in the video happened.
I placed all of the ingredients into the crafting grid, then I took 1(or 2) totem of undying and all components duplicated. Also, you can stack totems if you put the 2-stack on another n-stack.
Futhermore, I found out that totems can be picked up in stacks of 2.
Almost all things listed before you can fing in the video on youtube that I posted.
(I was chatting with a friend on Skype. Do not pay attention to it.)