getIdentifier() method must be of the type string
Fixed getIdentifier() must be of the type string (#7) When `$configuration->getName()` is `null`, which is possible with the default `@ParamConverter` from `FrameworkExtraBundle` an exception will be thrown because `getIdentifier` requires a string as third param. Using `?string $name` is not allowed since the bundle should be compatible with php >= 7.1 `private function getIdentifier(Request $request, $options, string $name): string`