Description:
------------
Adding spaces changes the internal representation of a SimpleXMLElement.

If you change the value of c to add a space, '\n', or an additional node <x2/> after  the node <x/>, you get the correct output.  

Test script:
---------------
<?php
var_dump(simplexml_load_string('<a><b/><c><x/></c></a>')->c);
?>



Expected result:
----------------
class SimpleXMLElement#2 (1) {
  public $x =>
  class SimpleXMLElement#3 (0) {
  }
}


Actual result:
--------------
class SimpleXMLElement#2 (1) {
  public ${0} =>
  class SimpleXMLElement#3 (1) {
    public $x =>
    class SimpleXMLElement#4 (0) {
    }
  }
}