[BUGFIX] Handle missing t3ver_state value in workspace ElementEntityP…

…rocessor

A record may not have a t3ver_state, hence
accessing this value must be safeguarded.

Resolves: #102251
Releases: 12.4, 11.5
Change-Id: Ia2050171276891e08d2e84e750cfa894a7f3291f
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/81555
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: core-ci <typo3@b13.com>

typo3/sysext/workspaces/Classes/Dependency/ElementEntityProcessor.php

@@ -140,7 +140,7 @@ public function createClearDependentElementChildReferenceCallback(array $callerA
         $response = $this->createNewDependentElementChildReferenceCallback($callerArguments, $targetArgument, $caller, $eventName);
         if (empty($response)) {
             $record = BackendUtility::getRecord($callerArguments['table'], $callerArguments['id']);
-            if (!VersionState::cast($record['t3ver_state'])->equals(VersionState::DELETE_PLACEHOLDER)) {
+            if (!VersionState::cast($record['t3ver_state'] ?? 0)->equals(VersionState::DELETE_PLACEHOLDER)) {
                 $response = ElementEntity::RESPONSE_Skip;
             }
         }
@@ -162,7 +162,7 @@ public function createClearDependentElementParentReferenceCallback(array $caller
         $response = $this->createNewDependentElementParentReferenceCallback($callerArguments, $targetArgument, $caller, $eventName);
         if (empty($response)) {
             $record = BackendUtility::getRecord($callerArguments['table'], $callerArguments['id']);
-            if (!VersionState::cast($record['t3ver_state'])->equals(VersionState::DELETE_PLACEHOLDER)) {
+            if (!VersionState::cast($record['t3ver_state'] ?? 0)->equals(VersionState::DELETE_PLACEHOLDER)) {
                 $response = ElementEntity::RESPONSE_Skip;
             }
         }