ACP2E-2198: fix scenario where configs are not reloaded

Author: alzota

lib/internal/Magento/Framework/App/DeploymentConfig.php

@@ -61,6 +61,11 @@ class DeploymentConfig
      */
     private $readerLoad = [];
 
+    /**
+     * @var array
+     */
+    private $noConfigData = [];
+
     /**
      * Constructor
      *
@@ -94,9 +99,17 @@ public function get($key = null, $defaultValue = null)
         }
         $result = $this->getByKey($key);
         if ($result === null) {
-            if (empty($this->flatData) || count($this->getAllEnvOverrides())) {
+            if (empty($this->flatData)
+                || !isset($this->flatData[$key]) && !isset($this->noConfigData[$key])
+                || count($this->getAllEnvOverrides())
+            ) {
+                $this->resetData();
                 $this->reloadData();
             }
+
+            if (!isset($this->flatData[$key])) {
+                $this->noConfigData[$key] = $key;
+            }
             $result = $this->getByKey($key);
         }
         return $result ?? $defaultValue;