Rich Text editor removes bold and italics from nolink macro

To replicate:

1. Add following markup to page via Wiki Markup editor

{nl:http://www.google.com}

*{nl:http://www.google.com}*

_{nl:http://www.google.com}_

_*{nl:http://www.google.com}*_

2. Save page
3. Edit page with Rich Text editor, formatting appears correct
4. Save page, formatting is removed