Stylecombo missing options problem

[Garry Yao]

Reproducing Procedures

1. Open the replace by class example page;
2. Make the following content with the selection on whole document by click 'Select All' command;

   ^<table border="1" cellpadding="1" cellspacing="1" style="width: 200px; height: 46px;">
   	<tbody>
   		<tr>
   			<td>
   				text
   			</td>
   		</tr>
   	</tbody>
   </table>^
   

3. Open 'Styles' combo;
   • Actual Result: There's no option displayed in dropdown list.

[Garry Yao]

DUP of #3092.