It's known that you can dupe any items, but those items were glitched and could not be added. When you have the glitched Item, you are able to rightclick and create "real" items that could be stored together.
Also Not sure if jjj is able to fix this part; he might be able to, but this glitched diamond might not be fixable :)
This glitch will probally be fixed in the next few days (and I will update the video when it happens)
Update:
Sometimes the glitched item created does not dupe. So keep creating dupes untill you find one that is able to rightclick infinatly
UPDATE PATCHED:
From his blog:
http://notch.tumblr.com/post/998637682/minecraft-alpha-v1-0-17-03-finland-and...
Also lol sorry for the spell error, I did this at 2:30am :(
typo001 1 year ago
"Infinite". Also, which items does this work with? It's not working for me with coal.
Gabumon54321 1 year ago
@Gabumon54321
Sadly it was patched within the past day or so :(
(that might be why it is not working)
It worked with any items that could hold more then one
typo001 1 year ago