[MC-129096] Unbreakable items can still be combined in a crafting table

The bug

A player can combine 2 items in the crafting table to get one repaired item. This item loses all NBT data. However, it is also possible to do this if one or both items have the Unbreakable:1b tag.

How to reproduce

Give yourself an unbreakable pickaxe

/give @s minecraft:diamond_pickaxe[minecraft:unbreakable={}] 2

Put two diamond pickaxes in a crafting table where one or both are unbreakable
→ Notice that the items get combined while being unbreakable

Linked issues

relates to 1

MC-103995 Can't combine swords/tools/armor with Unbreakable tag in an anvil Open

Attachments

MC-129096.mp4

Comments 18

Asteraoth 2018-08-18T14:16:10Z

Confirmed for 1.13.1-pre1

Asteraoth 2018-08-22T16:20:54Z

Confirmed for 1.13.1

tryashtar 2018-11-29T18:48:31Z

18w48a removes this method of crafting, so this can be closed (it's also worth noting that Unbreakable items can't be used in the grindstone)

muzikbike 2018-11-30T00:26:07Z

Wouldn't this be better resolved as Fixed as per the resolution for MC-103192?

I think this would be better off regarded as a duplicate of MC-101326, though.

violine1101 2020-01-06T10:35:42Z

Reopened since combining items in the crafting interface has been added back into the game.

8 more comments

Avoma 2021-12-17T11:23:10Z

Can confirm in 1.18.1.

Avoma 2022-05-15T09:21:57Z

Can confirm in 1.18.2 and 22w19a.

Avoma 2022-06-22T13:43:19Z

Can confirm in 1.19.

Avoma 2022-10-15T13:27:00Z

Can confirm in 1.19.2.

user-f2760 2023-12-14T11:48:56Z

Confirmed for 1.20.4.