Broken characters shown for Macro in editor mode for non-latin Unicode characters (Korean, Japanese, Arabic, etc..) global default language

Summary

Broken characters shown for Macro in editor mode for non-latin Unicode characters (Korean, Japanese, Arabic, etc..) global default language

Steps to replicate

1. Click on view my settings on the top right corner > Profile > Settings > Edit > Language > Set to Korean
   OR Admin > General > Languages > Edit > Korean
2. Create new page
3. Add Table of Contents Macro

Expected result

Macro show characters correctly

Actual result

Macro show broken characters:

Workaround

no workaround