bug #6902 Fix double encoded urls (ksn135)

This PR was merged into the 4.x branch.

Discussion
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Fix double encoded urls

Sometimes Telegram for iOS mistakenly double convert url if it contains unicode letters (issue overtake/TelegramSwift/issues/1215)

Valid:
https://example.com/?crudAction=detail&crudControllerFqcn=App%5CController%5CDocCrudController&entityId=2500426&page=1&query=гаврилов

Broken (until this fix):
https://example.com/?crudAction=detail&crudControllerFqcn=App%255CController%255CDocCrudController&entityId=2500426&page=1&query=гаврилов

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Commits
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b3f7119 Fix double encoded urls

Author: javiereguiluz

src/Factory/ControllerFactory.php

@@ -50,6 +50,7 @@ private function getController(string $controllerInterface, ?string $controllerF
             return null;
         }
 
+        $controllerFqcn = str_replace('%5C', '\\', $controllerFqcn);
         $newRequest = $request->duplicate(null, null, ['_controller' => [$controllerFqcn, $controllerAction]]);
         try {
             $controllerCallable = $this->controllerResolver->getController($newRequest);