Outdent RLT list item results in item wrapped in Div or P

[Jakub Ś]

I have found this problem while reproducing #9123

1. Load the following editor content:

         <ol>
         	<li>
         		foo
         		<ol>
         			<li dir="rtl">
         				^bar</li>
         			<li>
         				baz</li>
         		</ol>
         	</li>
         </ol>
   

2. Press the Outdent (Decrease Indent) button:

Result: Please note that there is P wrapping "bar" element. In DIV and BR more this is changed to DIV.

<ol>
	<li>
		foo</li>
	<li dir="rtl">
		<p dir="rtl">
			^bar</p>
		<ol>
			<li>
				baz</li>
		</ol>
	</li>
</ol>

Reproducible in IE6-9 and Firefox from CKEditor 3.6.3 rev. [7419].