[BUGFIX] Successful UPDATE might not be detected

Change-Id: I9ff07288a713a3e1af4a2d5259d981a215538cee
Reviewed-on: http://review.typo3.org/33224
Reviewed-by: Xavier Perseguers <xavier@typo3.org>
Tested-by: Xavier Perseguers <xavier@typo3.org>