+ // IE requires a filler NBSP for nested list inside empty list item,\r
+ // otherwise the list item will be inaccessiable. (#4476)\r
+ if ( CKEDITOR.env.ie && !li.getFirst( function( node ){ return isNotWhitespaces( node ) && isNotBookmark( node ); } ) )\r
+ li.append( range.document.createText( '\u00a0' ) );\r
+\r