diff --git a/src/Form/Control/Dropdown.php b/src/Form/Control/Dropdown.php
index 784e17e79c..62e1c6283c 100644
--- a/src/Form/Control/Dropdown.php
+++ b/src/Form/Control/Dropdown.php
@@ -276,8 +276,8 @@ protected function _addCallBackRow($row, $key = null): void
             $res = ($this->renderRowFunction)($row);
             $this->_tItem->set('value', $this->getApp()->uiPersistence->typecastSaveField($this->model->getField($this->model->idField), $row->getId()));
         } else {
-            $res = ($this->renderRowFunction)($row, $key);
-            $this->_tItem->set('value', (string) $res['value']);
+            $res = ($this->renderRowFunction)($row, $key); // @phpstan-ignore-line https://github.com/phpstan/phpstan/issues/10283#issuecomment-1850438891
+            $this->_tItem->set('value', (string) $res['value']); // @phpstan-ignore-line https://github.com/phpstan/phpstan/issues/10283
         }
 
         $this->_tItem->set('title', $res['title']);
diff --git a/src/Form/Control/DropdownCascade.php b/src/Form/Control/DropdownCascade.php
index 0e782ec8cd..4d0f08fc4b 100644
--- a/src/Form/Control/DropdownCascade.php
+++ b/src/Form/Control/DropdownCascade.php
@@ -87,7 +87,7 @@ public function getNewValues($id): array
             if ($this->renderRowFunction) {
                 $res = ($this->renderRowFunction)($row);
                 $values[] = [
-                    'value' => $res['value'],
+                    'value' => $this->getApp()->uiPersistence->typecastSaveField($model->getField($model->idField), $row->getId()),
                     'text' => $res['title'],
                     'name' => $res['title'],
                 ];
@@ -108,7 +108,7 @@ public function getNewValues($id): array
      * of possible values.
      *
      * @param list<array{value: string, text: mixed, name: mixed}> $values
-     * @param mixed                                                $value the current field value
+     * @param mixed                                                $value  the current field value
      */
     private function getJsValues(array $values, $value): array
     {