Pasting commands with backslash directly on a page duplicates the backslash on the commands

Issue Summary

Pasting commands with backticks and backslash directly to a blank page will add the code snippet with the command, but the backslashes on the command will get duplicated

Steps to Reproduce

• Copy this text

  code
  ```
  back slash \ with
  to see what happens
  ```
  check

  (will attach an image in case the editor modifies the command)
  

• Create a new page (or edit an existing page)
• Paste the copied command
• The backslash will get duplicated

Expected Results

The command should be pasted as it was copied

code

 back slash \ with \\ to see what happens 

check

Image of expected result in the page

Actual Results

This is the actual result 

code

 back slash \\ with \\\\ to see what happens 

check

Image of actual result in the page

Workaround

The workaround is to create the Code snippet first from the toolbar and then copy the commands into the code snippet.