TYPO3 Core

If you set the stage for multiple workspace elements, the case 'setStage' overwrites the globals $id var in the foreach loop.

Therefore you get in the Postprocessing Hook just the last id of elements with a changed state.

Solution should be, to change the name of the id variable in the foreach loop (line 2359):

case 'setStage':
$idList = t3lib_div::trimExplode(',',$id,1);
foreach($idList as $id_local){
...
}

(issue imported from #M8922)