Under most circumstances, throwing a snowball/ender pearl/egg/what-have-you copies the item's NBT data (name, lore, custom model data). However, if the item being thrown is the last in the stack, then it just throws a regular projectile.
Steps to Reproduce
Grab yourself a single snowball and rename it.
Toss it out.
Run the command "/data get entity @e[type=snowball,sort=nearest,limit=1] Item"
Behold the given error message.
Now, repeat the process with two or more snowballs. Throw exactly one snowball, and repeat the command. Behold the snowball's delicious item data.
Environment
Windows 10, Java Version 1.8.0_201-b09
Linked issues
is duplicated by 3
MC-152280
Ender pearls not remembering item tags while using only one of them
Resolved
MC-154458
Thrown items do not copy item data to the entity if it's the last item in the stack
Resolved
MC-162890
Entities created from custom throwable items lose the tag Item:{} when thrown in a stack of 1
Resolved
Attachments
Comments 11
1 more comments
Still in 19w14a