diff --git a/typo3/sysext/core/Classes/DataHandling/Localization/DataMapProcessor.php b/typo3/sysext/core/Classes/DataHandling/Localization/DataMapProcessor.php
index bf7204c..2f6c365 100644
--- a/typo3/sysext/core/Classes/DataHandling/Localization/DataMapProcessor.php
+++ b/typo3/sysext/core/Classes/DataHandling/Localization/DataMapProcessor.php
@@ -578,7 +578,7 @@ class DataMapProcessor
         // @todo Invalid manually injected child relations cannot be determined here
         $sanitizedValue = $this->sanitizationMap[$item->getTableName()][$item->getId()][$fieldName] ?? null;
         if (
-            !empty($missingAncestorIds) && $item->isNew() && $sanitizedValue !== null
+            !empty($missingAncestorIds) && $item->isNew() && !empty($sanitizedValue)
             && count(GeneralUtility::trimExplode(',', $sanitizedValue)) === count($missingAncestorIds)
         ) {
             $this->modifyDataMap(