Error in console after removing formatting and disabling selection as a list item.

[Artur Delura]

Browsers: Chrome, FF and?

1. Open editor with following content and selection:

   <ol>
   	<li>hello</li>
   	<li>moto</li>
   	<li><strong>[:D]</strong></li>
   </ol>
   

2. Click "Remove format" button.
3. "Ordered list" button.

Actual result:

There is an error in console: TypeError: node is null range.js:1724

this.setStart( node.getParent(), node.getIndex() );