Fix file locations when the filename has special characters

[olivergrabinski]

Motivation Due to the bug fixes in #4426, there could be files sotred in the DiskStorage (local) for which the location has the wrong filename in it.

Example: If the filename is [tag]file.txt, the file would be saved at /some/path/%5Btag%5Dfile.txt instead of /some/path/[tag]file.txt. This is only the case for local files, not remotes ones which are correct.

There could be a utility that corrects both the file location and the location file attribute.