[Bug] mirror modeling behaves incorrectly

[Incernion]

What are you trying to do, and what do you expect to happen?

enabling Mirror Modeling and moving a bone with some cubes inside of it (or other bones), expecting to make a duplicate of the bone, mirrored to the other side.

What happens instead?

Every element (including other bones) in the bone gets a duplicate bone hierarchy

Model format in which the issue occurs

All of them AFAIK

Blockbench variant

Website, Program

Blockbench version

4.11.1

Operating System

Windows 10

Installed Blockbench plugins

N/A