Blog Post Layout Compact Macro messes up panels layout when added to a page

STEPS TO REPRODUCE

Preconditions: Blog Application is already installed.

1. Login as Admin
2. Create a blog post
3. Create or edit a page with CKEditor
4. Click 'XWiki Macro' > select 'Blog Post Layout Compact' Macro
5. Fill the blog post's reference
6. Click 'Submit'
7. Click 'Save & View'
8. Create or edit a Dashboard page
9. Click 'Add Gadget' > select 'Blog Post Layout Compact'
10. Fill the blog post's reference
11. Click 'Submit'
12. Click 'Save & View'

EXPECTED RESULTS

The 'Blog Post Layout Compact' Macro is added and the page is saved properly.

ACTUAL RESULTS

After saving, the page layout is heavily modified, the left panel is no longer displayed and the right panel is displayed on the bottom of the page. Also, some blog post elements are displayed in the right panel place (like '
Created by Admin on yyyy/mm/dd').