Firefox: Dragging image wrapped in block element leaves empty block elements in content area.

[Jakub Ś]

1. Go to ​http://ckeditor.com/demo
2. Drag image in few places inside content area
3. Switch to source and notice that there are many empty headers inside content area <h1>&nbsp;</h1>

I have also tried using the below code (img inside div)

<div>
	<img alt="" src="http://a.cksource.com/c/1/inc/img/demo-little-red.jpg" style="margin-left: 10px; margin-right: 10px; float: left; width: 120px; height: 168px;" /></div>
<h1>Little Red Riding Hood</h1>

Code didn't cause much trouble except for the first two drags. First one leaves empty div at the top and second one (Let's say picture was dragged here in the first try rescue and cuts the w^olf )and the second one leaves empty div inside text. In all other cases picture is dragged without div anymore.

Issue reproducible in Firefox from CKEditor 3.6.2 rev [7242]

[Jakub Ś]

Till version 3.6.1 when dragging image placed inside a div it split paragraphs.

[Jakub Ś]

This ticket is related to #8884. Same TC, similar results, different versions.

[Jakub Ś]

Seems this issue is no longer reproducible in latest CKEditor 4.1 and latest firefox 20.