Intended Behaviour: When naming the "fish in a bucket", the placed fish will be named (similar to a nametag) the same name as the bucket.

Steps to reproduce:

1. Obtain fish in a bucket.
2. Use anvil to rename fish in a bucket.
3. Use fish in a bucket, spawning the corresponding fish.
4. Observe lack of unique name.

This worked in previous versions, and seems to be removed / not working.