Unexpected behavior of Phalcon\Loader with Namespaces (substrings)

Hi everyone.

I'm having a problem in my project, and I'm not sure if it is because something I did or not. I used Phalcon\Loader to register a namespace - App.

$loader = new \Phalcon\Loader();
$namespaces = array() ;
$namespaces["App"] = realpath(__DIR__ ."/../App/") ;
$loader->registerNamespaces( $namespaces ) ;
$loader->register();

Aftewards, i created classes under this namespace (following PSR-4 standards). For example :

• App
  • Test1
    • Class1. php (class Class1 with namespace App\Test1)
  • Test2
    • Class1.php (class Class1 with namespace App\Test2)

It all works really nicely, but if I happen to use a namespace containing the registered one - for example:

• App
  • TestingApp
    • Class2.php (class Class2 with namespace App\TestingApp)

I get a fatal error of class not found. The loader doesn't seem to find the Class2 class when I use the fully qualified name (App\TestingApp\Class2).

Did someone else came across this type of problem?

Thanks!