From f74f9d5d4a9b354b34bbc88f9110c502182e45e4 Mon Sep 17 00:00:00 2001
From: brandonkelly <brandon@pixelandtonic.com>
Date: Sun, 20 Oct 2024 07:16:55 -0700
Subject: [PATCH] Fixed nested element creation

ownerId was no longer getting set via setAttributesFromRequest(), after #15898
---
 src/controllers/ElementsController.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/controllers/ElementsController.php b/src/controllers/ElementsController.php
index 013571f19b4..f8716331394 100644
--- a/src/controllers/ElementsController.php
+++ b/src/controllers/ElementsController.php
@@ -2239,9 +2239,12 @@ private function _createElement(): ElementInterface
 
         /** @var ElementInterface $element */
         $element = $this->element = Craft::createObject($this->_elementType);
-        if ($this->_siteId && $element::isLocalized()) {
+        if (isset($this->_siteId) && $element::isLocalized()) {
             $element->siteId = $this->_siteId;
         }
+        if (isset($this->_ownerId) && $element instanceof NestedElementInterface) {
+            $element->setOwnerId($this->_ownerId);
+        }
         $element->setAttributesFromRequest($this->_attributes);
 
         if (!Craft::$app->getElements()->canSave($element)) {