fix bug #59613 (Crash with clone XMLReader)
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  fix bug #59613 (Crash with clone XMLReader)
Merge branch 'PHP-5.5'

* PHP-5.5:
  fix bug #59613 (Crash with clone XMLReader)
typo: really fix bug #51936 	Crash with clone xmlreader
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  typo: really fix bug #51936 	Crash with clone xmlreader
Merge branch 'PHP-5.5'

* PHP-5.5:
  typo: really fix bug #51936 	Crash with clone xmlreader