[OPEN] Error when pasting borders, map editor

Bug Report

Actual behavior
Example: When I copy a country's borders and paste them, I expect to see the clone version of them.

Steps to reproduce the behavior
Example:
1. Map editor, clone the World map
2. Click on a random country with "Edit Borders" (White) cursor
3. Click on copy selection (or ctrl + c)
4. Click on paste copied (or ctrl +v)
5. Click on a random point in the map.

Information:
Browser: Firefox

Browser version: 99.0.1

OS: Windows 10

Any other relevant information: Not sure if this happens in the other maps, only tried on the world map. I didn't use this function for a long time because of this problem, and I was suprised nobody made a proper bug report topic about it.

Attachments:

I get this all the time with my borders.