Sorry, I didn’t explain myself well enough.
The problem occurs when the user is “typing”.
I’m Japanese. I get the following when I try to enter 2-byte characters.
Suppose the file name is “こんにちわ.pdf”.
The user first deletes the date, which is the initial value. The user then enters the text(2-byte).
The user enters text: -> “こ.pdfんにちわ”.
The user has to delete all initial characters containing the extension and enter the extension manually or reselect PDF switch.
There is another drawback. It is word conversion in 2-byte characters. The latest version of ownCloud (iOS) is not able to do this word conversion.
Is full support for 2-byte character input in the distant future?