Cloning most containers loses their custom name

Release 1064482 from 1.6.0.8 - Beta 18

Summary: Cloning some containers named with anvils do not keep their names. Seems to fail on most except for chests.

Impact: This limits our ability to use clone and keep context related items. For example specifying an "armor chest" vs a "weapon chest" allows for added context to improve player immersion.

Repro Steps:
1) Name a dispenser, dropper, hopper, and maybe others with an anvil.
2) clone it

Observed Results: The cloned blocks will not have their name retained and default to standard.

Expected Results: the cloned blocks should retain the name of the source blocks.

Video: https://youtu.be/8Zb7qTU-710

Was marked as fixed in MCM-184, but it aint fixed. See attached new video and attached repro world.