Restore of a file with non-ascii chars fails

[elacunza]

Hi,

Just tried to restore a file named "VALIDACIÓN Check-Plot. V4.docx" (note the acute). This fails with the following log in /var/log/elkarbackup/prod.log:

[2018-04-26 16:32:14] request.INFO: Matched route "showJobBackup". {"route_parameters":{"path":"/Weekly.3/0-DOC VARIOS//VALIDACIÓN Check-Plot. V4.docx","_controller":"Binovo\ElkarBackupBundle\Controller\DefaultController::showJobBackupAction","idClient":"1","idJob":"6","action":"download","_route":"showJobBackup"},"request_uri":"http://172.27.27.254/elkarbackup/client/1/job/6/backup/download//Weekly.3/0-DOC%20VARIOS//VALIDACI%C3%93N%20Check-Plot.%20V4.docx"} []
[2018-04-26 16:32:14] security.DEBUG: Read existing security token from the session. {"key":"_security_secured_area"} []
[2018-04-26 16:32:14] security.DEBUG: User was reloaded from a user provider. {"username":"root","provider":"Symfony\Bridge\Doctrine\Security\User\EntityUserProvider"} []
[2018-04-26 16:32:14] security.INFO: No expression found; abstaining from voting. [] []
[2018-04-26 16:32:14] request.CRITICAL: Uncaught PHP Exception InvalidArgumentException: "The filename fallback must only contain ASCII characters." at /usr/share/elkarbackup/app/bootstrap.php.cache line 2003 {"exception":"[object] (InvalidArgumentException(code: 0): The filename fallback must only contain ASCII characters. at /usr/share/elkarbackup/app/bootstrap.php.cache:2003)"} []

Renaming the file to "VALIDACION Check-Plot. V4.docx" fixed the issue.