Added failing test case for template guesser bug

[Padam87]

In a Symfony 4, if you create a controller in App\Controller which extends a controller in a bundle, the @Template annotation will try to render the wrong view.

The main controller is not in a bundle, so the guesser will continue with the parent controller, and wrongly guess the parent's bundle.

[Padam87]

Not sure how to go about fixing this. Any suggestions?

[fabpot]

Closing as this repository is not maintained anymore. As of Symfony 6.2, all features have been moved to Symfony core now. See #783