Embed-inline content objects will just display 'ezembed' instead of the content object, when the embed element is the only element on the paragraph.

Steps to reproduce:

1. Create a new content with an XML block (ie: article)
2. Insert an embed content object, and set it to be inline
3. Publish it
4. Check in the frontend, or on the preview, and "ezembed" will be displayed instead of the content object.