Undo creating new sub arrays as this seems to be not required

Utils/ArrayUtils.php

@@ -95,17 +95,9 @@ final class ArrayUtils
         if ($pathParts === false) {
             throw new \Exception();
         }
-        
-        $pathPartCount = \count($pathParts);
-        $c             = 1;
 
         foreach ($pathParts as $key) {
-            if (!isset($current[$key]) && $pathPartCount < $c) {
-                $current = [];
-            }
-            
             $current = &$current[$key];
-            ++$c;
         }
 
         if ($overwrite) {