TYPO3 Core

Debugging further, i see that the getCurrentConfiguration (which is only used by the extension manager backend) is calling $this->configurationItemRepository->createArrayFromConstants

which returns an array looking like this

array (
   'key1' => array(
     'cat' => ' Basic'
     'subcat' => 'x/z',
     ...
     'value' => ''
     'default_value' => ''
   )
 )

Which makes a lot os sense. But it does not make sence to call array_merge_recursive_overrule with this array and the currenc extConf which will look simething like

array(
   'key1' => 'value1'
 )

Hmm, it gets even worse when having nested configuration with first.second = value

The error occurs when merging the ConfigurationUtility internal "valued" configuration with the serilized "nested" configuration, which doesnt make to much sense. I submitted a patch set which convertes to "valued" before merging default with existing. This seems to fix the problems.

Patch set 1 for branch TYPO3_6-0 has been pushed to the review server.
It is available at https://review.typo3.org/17720