Data with $processorConfiguration option 'returnFlattenObject'==1 should also be returned under $targetVariableName

[dacko-sk]

When using DatabaseQueryProcessor with returnFlattenObject=1 (only 1 record item expected on output instead of array of records), this method returns data without the $targetVariableName key specified via 'as' option
return array_shift($processedRecordVariables);
while when returnFlattenObject is not set, the method returns the data under the $targetVariableName key
[ $targetVariableName => $processedRecordVariables; ]

Issue in file:

headless/Classes/DataProcessing/DatabaseQueryProcessor.php

Line 126 in c133e52

return array_shift($processedRecordVariables);

This could be resolved by changing the line 126 to something like
$processedRecordVariables = $processedRecordVariables[0] ?? [];
without returning it and letting the line 132 to return the whole $processedData as usual - with the data appended under the $targetVariableName key on line 130.

Thanks for checking.