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MC-5413

Items with NBT data do not stack correctly due to serialization

Items in inventory do not stack consistently depending on if they were created before or after when you last logged out or did a Save and Quit.

Steps to reproduce:
1. Name a block of dirt "A" using the anvil.
2. Name another block of dirt "A" and see that it does stack with the first.
3. Save and Quit then open the world again.
4. Name a third block of dirt "A" and see that it does NOT stack with the first two.
5. Save and Quit then open the world yet again.
6. See that now all three blocks of dirt stack together correctly.

Linked issues

Comments

Tails

Confirmed.

Dean Baset

Confirmed

Jesper the End

I can confirm this bug for 13w06a. It's really annoying for item sorters. I also noticed the NBT data is just the same.

Abandoned account

Confirmed and voted.

Jesper the End

for some reason, it does work after a while, I'm not sure when, but I sucked an item up in a hopper then dropped it again using a dropper, then they did stack.

Jesper the End

Confirmed for 13w07a btw

Jesper the End

confirmed for 13w09a

Jesper the End

this bug sort of exists again in 13w36b using the /give command: [MC-30468]

Sebastian Schieß

It "reproduce" some times on multiplayer servers.

Lucas Elliott

I am still experiencing this bug in 1.12 on play.wildcraftmc.com

violine1101

It works fine for me. I assume it's only an issue because of modified server software (e.g. Bukkit/Spigot).

Travis Watkins

(Unassigned)

Confirmed

Minecraft 1.4.6, Minecraft 1.4.7, Snapshot 13w06a, Snapshot 13w07a, Snapshot 13w09a

Snapshot 13w09b

Retrieved