[Bug] downloadImageThumbnailAction calling BinaryFileResponse with null

[cancan101]

Not sure when this happens, but downloadImageThumbnailAction sometimes calls $response = new BinaryFileResponse($thumbnailFile); with null:

Symfony\Component\HttpFoundation\BinaryFileResponse::__construct(): Argument #1 ($file) must be of type SplFileInfo|string, null given, called in /var/www/mdm/vendor/pimcore/admin-ui-classic-bundle/src/Controller/Admin/Asset/AssetController.php on line 1123

I assume there is some issue with the thumbnail generation but ideally would not raise an uncaught error.

[github-actions]

Thanks a lot for reporting the issue. We did not consider the issue as "Pimcore:Priority", "Pimcore:ToDo" or "Pimcore:Backlog", so we're not going to work on that anytime soon. Please create a pull request to fix the issue if this is a bug report. We'll then review it as quickly as possible. If you're interested in contributing a feature, please contact us first here before creating a pull request. We'll then decide whether we'd accept it or not. Thanks for your understanding.