Links are badly saved on IE7

Follow this steps to reproduce:

• edit a page in WYSIWYG mode
• switch to Source tab and set the content to

  Link to [[XWiki>>http://www.xwiki.org]].
  

• switch back to WYSIWYG tab
• place the caret before the dot ending the line
• type space and a few characters, e.g. " 123"
• switch back to Source tab

The result is:

Link to org.xwiki.gwt.dom.client.Element#placeholder[[http://www.xwiki.org]][[">XWiki>>http://www.xwiki.org]] 123.

As you can see the link is messed up.