SCAYT doesn't work with 'replace' command

[Garry Yao]

1. Load the following content in editor;

   <p>
   	wrongspell</p>
   

   • Expected Result: The word is red-marked in wysiwyg mode.
2. Open 'Replace' dialog and replace the word with "right spell", then close the dialog.
   • Expected Result: The red underline is removed.
   • Actual Result: The red underline is still in place.
3. Select 'sample text' and apply the 'Italic' style;
4. Select 'sample' and remove the 'Bold' style;
5. Swtich to Source mode and check the output.
   • Actual Result:

     <p><strong>This </strong><em>is</em><em> some</em></p>
     

   • Expected Result:

     <p><strong>This </strong><em>is some</em></p>