When creating new content with Richtext field and styling it, any carriage (shift + enter) lines disappears after publishing content.

Steps to reproduce:

1. Create a content type with ezrichtext field
2. Create a new content
3. In Richtext field write a paragraph text and insert a carriage return in the middle (shift + enter)
4. select the whole paragraph and apply any style in the style dropdown list
5. you can see that the carriage return is still here
6. publish the content and see that the carriage return has disappeared