Index: CKEditor/trunk/_source/plugins/specialchar/dialogs/specialchar.js
===================================================================
--- CKEditor/trunk/_source/plugins/specialchar/dialogs/specialchar.js	(revision 6348)
+++ CKEditor/trunk/_source/plugins/specialchar/dialogs/specialchar.js	(revision 6402)
@@ -26,5 +26,8 @@
 			dialog.hide();
 
-			editor.insertHtml( value );
+			// We must use "insertText" here to keep text styled.
+			var span = editor.document.createElement( 'span' );
+			span.setHtml( value );
+			editor.insertText( span.getText() );
 		}
 	};