Unlink result in fragmental <a>

[Garry Yao]

Reproducing Procedures

1. Open the replace by class example page;
2. Make the following selection;

   <p>This is some <strong>sa^mple text</strong>. You^ are using <a href="http://www.fckeditor.net/">CKEditor</a>.</p>
   

   • Actual Result:

     <p>
     	This is some <strong>sa<a href="http://example.com">mple text</a></strong><a href="http://example.com">. You</a> are using <a href="http://www.fckeditor.net/">CKEditor</a>.</p>
     

   • Expected Result:

     <p>
     	This is some <strong>sa</strong><a href="http://example.com"><strong>mple text</strong>. You</a> are using <a href="http://www.fckeditor.net/">CKEditor</a>.</p>