Attributes duplicated from current tag to new tag when inserting a new line

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In any browser:

1. Goto Source view
2. Create a div or p tag
3. Include some styling such as a border with this tag
4. Include some content with the tag

   <div style="border-top: 3px solid red">Hello</div>
   

5. Switch to WYSIWYG mode
6. Place the cursor at the end of the content just created
7. Add a new line

Expected: A new line should appear without content and without styling

Actual: A new line without content is created, but the styling is copied from the previous line

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Screenshot

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Screenshot of source