Round-tripping between RTE and Wiki Markup will break bullets formating inside some macros such as {panel}, {quote}, {note}, etc if heading is preceeding the macros

Description

When round-tripping between Rich Text Editor and Wiki Markup in a page that contains macros which has body as headings, the formatting of bullets inside the macro breaks. Please check the next section for more information

Steps to Reproduce

1. Copy the wiki markup below and paste to a Wiki Markup editor, then switch between Rich Text Editor and Wiki Markup.

   h1. {panel}
   * bullet 1
   * bullet 2
   {panel}
   

   bug_1.jpg

2. This is how it suppose to look like in Preview:
   bug_2.jpg
3. Switch to Rich Text Editor and back to Wiki Markup mode, this is how it will look:
   bug_3.jpg
4. Switch to Rich Text Editor and back to Wiki Markup mode again, a backslash is added to the bullet:
   bug_4.jpg
5. This is how it suppose to look like in Preview mode:
   bug_5.jpg

Findings

This bug also affects the following macros:

• {panel}
• {section}
• {column}
• {note}
• {info}
• {tip}
• {warning}

Workaround

Just write the macro in a newline, example below:

h1.
{panel}
* bullet 1
* bullet 2
{panel}