I'm using Chrome 60.0.3112.101

After publishing an article fromContent on the fly with another article embedded in it (also created from Content on the fly) the displayed view of the new Article is not rendered correctly.

Steps to reproduce:
1. From the Dashboard select "Create" button
2. Select Content Type "Article", click "Next"
3. Click "Finish"
4. In the "Summary" field invoke the tooltip menu and choose Embed
5. Switch to "Create" tab
6. Select Content Type "Article", click "Next"
7. Click "Confirm selection"
8. Enter any text in "Summary" field
9. Click Publish
10. Click Publish again

The resulting page has left sidebar missing and the navigation toolbar is not correctly separated from the content of the site.
Two screenshots are attached: from clean and from demo for easier comparison.