Upgrade to 3.4.5

kirby/vendor/composer/ClassLoader.php

@@ -60,7 +60,7 @@ class ClassLoader
     public function getPrefixes()
     {
         if (!empty($this->prefixesPsr0)) {
-            return call_user_func_array('array_merge', $this->prefixesPsr0);
+            return call_user_func_array('array_merge', array_values($this->prefixesPsr0));
         }
 
         return array();

kirby/vendor/composer/autoload_real.php

@@ -13,6 +13,9 @@ class ComposerAutoloaderInit12091bebabd81c9aba88b2aeec22c8d7
         }
     }
 
+    /**
+     * @return \Composer\Autoload\ClassLoader
+     */
     public static function getLoader()
     {
         if (null !== self::$loader) {