contentEditable is not worked on DIV

[mazongquan]

I set contentEditable="false" in a DIV, but still can modify the content inside DIV. <div contentEditable="false">xxx</div> I am not sure whether other has the same problem except DIV, maybe you can try :) Only in IE. My IE version is IE8.

[Jakub Ś]

To reproduce:

1. Paste the below code inside editor:

   <div contentEditable="false">xxxx</div>
   

2. Go to wysiwyg mode and click on a div - resize handles will appear
3. Click somewhere inside editor but outside resize handles
4. In IE9 cursor will be blinking at the end of text xxxx^. In IE8 whole text gets selected so additional right arrow key press is needed
5. Start typing

Result: div gets modified.

Bug has been reproducible from CKEditor 3.2.2.

[Piotrek Koszuliński]

Fixed by #9764.