The bug
In some cases items lose their data after they have been used in the world, e.g. by interacting with entities, see the lists below.
Possible without changes
The game already has the functionality (e.g. NBT tags) required to solve these, but is not using it.
Buckets turning into other types of buckets, by player or dispenser - Consider the implications on adventure mode and re-using buckets (MC-48252)
Bowls filled from red and brown mooshrooms
Glass bottles being filled
Potions/water bottles and bowls after being consumed
Potions/water bottles after being brewed
Item given to panda by right clicking it
MC-114461: Lava bucket emptied / water bucket filled in furnace
MC-191591: Saddling horse
Requires changes
Changes (e.g. addition of NBT tags) are required to support these cases.
Linked issues
is duplicated by 12
MC-2194
Anvil naming system - Buckets not keeping their names
Resolved
MC-3579
Buckets, when named and used, will lose the name given.
Resolved
MC-6492
Renaming a bucket then filling it removes the name.
Resolved
MC-17083
Retrieved lead doesn't keep name
Resolved
MC-48252
water/lava cannot be removed in adventuremode
Resolved
relates to 2
Attachments
Comments 28
That someone was me. See the /r/Mojira discussion linked in MC-1981.
in fact, the bucket also looses all other nbt (CanPlaceOn for example), same with bottles/potions, don't know about bowls
This is a dupe of MC-1981. Someone changed the title to make it misleading. Its not just arrows.