Cloning Only Half of a Double Chest to Another Half of a Double Chest Causes Invisible Chest Block

**This is marked private, as it contains my personal email address**

Hello,

When you clone half of a double-chest to a location that reflects the same half of another double-chest, there is a third chest block created on the side, which is invisible, and has the same size inventory as a normal double-chest.

What I expected to happen was...the double-chest half would simply replace the existing half.

What happened was...the half was replaced and an additional invisible block was created in the process.

I understand this issue is similar to another bug, but the inventory menus appear normally as opposed to the other report, so I thought this justified a separate bug report.

Steps to reproduce:
1. Select an area to clone that includes half of a double-chest
2. Run the clone command so that the destination chest half corresponds to the same half of the original chest
3. Look one block to the left and open/destroy the invisible chest block

I could not include a video because of the file size limit. If this description was not sufficient for fixing the bug, please contact me at alanraterink@icloud.com so I can email the video showing the bug.

Thank you,
Alan