issue #3499482 Undefined array key "rendered"

modules/rest_views_search_api/src/Plugin/views/field/SearchApiEntityFieldExport.php

@@ -47,9 +47,11 @@ class SearchApiEntityFieldExport extends SearchApiEntityField {
    */
   // phpcs:ignore
   public function render_item($count, $item) {
-    $rendered = $item['rendered'];
-    if (isset($rendered['#type']) && $rendered['#type'] === 'data') {
-      return $rendered['#data'];
+    if (!empty($item['rendered'])) {
+      $rendered = $item['rendered'];
+      if (isset($rendered['#type']) && $rendered['#type'] === 'data') {
+        return $rendered['#data'];
+      }
     }
     return parent::render_item($count, $item);
   }