When multiple lines of codes from Code Block Macro are copied and pasted into a text editor, additional line breaks are added.

Steps To reproduce

1. Create a new page.
2. Add Code Block Macro with a few lines of codes, e.g.:

   public static void main(String[] args)
   {
     System.out.println("Hello World!");
   }
   

3. Save the page.
4. Highlight the code and press Ctrl+C to copy code selection to clipboard.
5. Press Ctrl+V to paste the clipboard contents into the Text Editor.

Observed Behaviours are attached to this ticket.

Workaround

1. Double click on the Code Block Macro to highlight the codes
   Upon double-clicking the code block macro, the code formatting will be disordered. Observed behaviour can be found in CONF-37203.
2. Press Ctrl+C to copy code selection to clipboard.
3. Press Ctrl+V to paste the clipboard contents into the Text Editor.

Besides that, user can opt to another browsers as a workaround, as this issue only occurs in IE.