When I insert HTML entities (e.g. &\#8800;) in the HTML editor and then switch to visual editor the entity displays correctly.
But switching back to the HTML editor shows that the CODE (&....;) has been converted into the character itself.
EVEN WORSE: When I display the final post the character shows as "?" (questionmark).
How can I make WordPress PRESERVE entity codes?
How can I prevent WordPress to CONVERT entity codes to entities?
This issue is now 3 years old
http://wordpress.org/support/topic/html-entities-in-wp-23
http://wordpress.org/support/topic/editortinymce-kills-%E2%85%94-and-many-other-html-entities
and has not been resolved yet? Is this possible?