ACPT-826

Author: aa-kashk

app/code/Magento/AsyncConfig/Plugin/Controller/System/Config/SaveAsyncConfigPlugin.php

@@ -83,7 +83,7 @@ public function aroundExecute(Save $subject, callable $proceed)
             $configData = $subject->getConfigData();
             $this->asyncConfigPublisher->saveConfigData($configData);
             $this->messageManager->addSuccess(__('Configuration changes will be applied by consumer soon.'));
-            $subject->_saveState($subject->getRequest()->getPost('config_state'));
+            $subject->saveState($subject->getRequest()->getPost('config_state'));
             /** @var \Magento\Backend\Model\View\Result\Redirect $resultRedirect */
             $resultRedirect = $this->resultRedirectFactory->create();
             return $resultRedirect->setPath(

app/code/Magento/Config/Controller/Adminhtml/System/AbstractConfig.php

@@ -89,7 +89,7 @@ protected function _isAllowed()
      * @param array $configState
      * @return bool
      */
-    public function _saveState($configState = [])
+    protected function _saveState($configState = [])
     {
         if (is_array($configState)) {
             $configState = $this->sanitizeConfigState($configState);

app/code/Magento/Config/Controller/Adminhtml/System/Config/Save.php

@@ -57,6 +57,17 @@ public function __construct(
         $this->string = $string;
     }
 
+    /**
+     * Save state of configuration field sets
+     *
+     * @param array $configState
+     * @return bool
+     */
+    public function saveState($configState)
+    {
+        return $this->_saveState($configState);
+    }
+
     /**
      * @inheritdoc
      */