diff --git a/core/lib/Drupal/Core/Config/ConfigFactory.php b/core/lib/Drupal/Core/Config/ConfigFactory.php
index 184d58d..a849616 100644
--- a/core/lib/Drupal/Core/Config/ConfigFactory.php
+++ b/core/lib/Drupal/Core/Config/ConfigFactory.php
@@ -160,9 +160,14 @@ protected function doLoadMultiple(array $names, $immutable = TRUE) {
 
     foreach ($names as $key => $name) {
       $cache_key = $this->getConfigCacheKey($name, $immutable);
-      if (isset($this->cache[$cache_key]) && !$this->cache[$cache_key]->isNew()) {
-        $list[$name] = $this->cache[$cache_key];
+      if (isset($this->cache[$cache_key])) {
+        // If the config objects exist in the cache, always unset it, but only
+        // use it if it is not new. We don't need to try and load a config
+        // object that we know doesn't exist.
         unset($names[$key]);
+        if (!$this->cache[$cache_key]->isNew()) {
+          $list[$name] = $this->cache[$cache_key];
+        }
       }
     }