Some items lose their name/data tags when used in the world

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.

• Leads after leashing an entity
• Saddling pig / strider
• MC-209: Placing blocks
• MC-1981: Shot arrows