danny0838
On Windows, a file or directory with a name containing an ending dot is not allowed; while on other OS such as Linux is ok.
Thus, if you use fnencode=safe, a page with UTF-8 namespace such as "中文:start" (chinese meaning "Chinese") will be saved as "pages/%ff1%k13/start.txt" on Windows while as "pages/%ff1%k13./start.txt" on other OS.
If the files are transferred from Windows to other OS, you get corrupted pagenames since the ending dot of folders (namespace names on DokuWiki) are missing.