. Keep in mind that internal D&amp;D is the most complex operation because editor have to handle two ranges at the same time.</p>
		<h3>Expected behavior:</h3>
		<ul>
			<li>proper drop position,</li>
			<li>in the internal and cross editor D&amp;D: dragged content should be removed,</li>
			<li>dropped content should be (more less) the same as dragged content,</li>
			<li>paste event should be fired,</li>
			<li>undo should work properly (one undo operation for one D&amp;D),</li>
			<li>no crashes, nor err