[BUGFIX] Fix isOverlayRecord check

Classes/Service/BackendServices.php

@@ -109,11 +109,16 @@ class BackendServices extends AbstractServices {
 		$result = FALSE;
 
 		if (in_array($table, VisibilityService::getSupportedTables(), TRUE)) {
-			$tanslationIdField = $GLOBALS['TCA'][$table]['ctrl']['transOrigPointerField'];
-			if ($tanslationIdField !== '') {
+			$translationIdField = $GLOBALS['TCA'][$table]['ctrl']['transOrigPointerField'];
+			if ($translationIdField !== '') {
 				// if the field which points to the original of the translation is
 				// not 0 a translation exists and we have an overlay record
-				$result = $row[$tanslationIdField] !== 0;
+				if (is_array($row[$translationIdField])) {
+					// somehow the sys_language_uid field could contain 0 => 0
+					$result = (int) $row[$translationIdField][0] !== 0;
+				} else {
+					$result = (int) $row[$translationIdField] !== 0;
+				}
 			}
 		}