Files with german 'Umlauts'

[kroerig]

Files with german 'Umlauts'

[northway]

We ran into this same issue with hungarian characters like: "áéőúűöüóí".

Debug info:

[localcachedir]/71c8a07f-59ec-40ec-b1ab-99cd2a5f729c/ea7484a8-fa05-46f7-99b3-093b57925d85/Neptun gyűjtőszámla részletes tudnivalói.pdf Error code: storedfilecannotread

Stack trace:

* line 457 of /lib/filestorage/file_system.php: file_exception thrown
* line 348 of /lib/filestorage/file_system_filedir.php: call to file_system->validate_hash_and_file_size()
* line 1792 of /lib/filestorage/file_storage.php: call to file_system_filedir->add_file_from_path()
* line 1321 of /lib/filestorage/file_storage.php: call to file_storage->add_file_to_pool()
* line 1359 of /repository/lib.php: call to file_storage->create_file_from_pathname()
* line 313 of /repository/repository_ajax.php: call to repository::move_to_filepool()