[Bug 53738] New: Cherry MIDI sequencer cannot read files with a path including CJK characters

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53738

Bug ID: 53738
           Summary: Cherry MIDI sequencer cannot read files with a path
                    including CJK characters
           Product: Wine
           Version: 7.18
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 73180
  --> https://bugs.winehq.org/attachment.cgi?id=73180
files can be opened (bgm_02.CHY) and cannot be opened (音楽_02.CHY). these files
are same except its filename.

A MIDI sequencer application "Cherry"
(http://hp.vector.co.jp/authors/VA010012/, its UI is in Japanese because of
Japanese developer) cannot open some files with a path including CKJ
characters.

When trying to open a file with CJK path, the app Cherry shows a dialog "File
reading error or a malformed file format" (in Japanese). When launch in
terminal with like "wine cherry.exe" then reproduce that behavior, but this app
does ntnot output any logs about that.

Detailed situations are like this:

- files with a name only with ASCII characters can be opened
- files with a name including CJK characters cannot be opened
- files with a name only with ASCII but in a directory with CJK characters
cannot be opened

These behaviors are reproduced in all published versions of Cherry in that
website :

- v1.4.3
- v1.5.2 (alpha)
- v1.5.3 (alpha)

And the locale info in my machine is here:

```
locale
LANG=ja_JP.UTF-8
LANGUAGE=ja:en_US:en
LC_CTYPE="ja_JP.UTF-8"
LC_NUMERIC=ja_JP.UTF-8
LC_TIME=ja_JP.UTF-8
LC_COLLATE=en_US.UTF-8
LC_MONETARY=ja_JP.UTF-8
LC_MESSAGES="ja_JP.UTF-8"
LC_PAPER=ja_JP.UTF-8
LC_NAME=ja_JP.UTF-8
LC_ADDRESS=ja_JP.UTF-8
LC_TELEPHONE=ja_JP.UTF-8
LC_MEASUREMENT=ja_JP.UTF-8
LC_IDENTIFICATION=ja_JP.UTF-8
LC_ALL=
```

I tried some launching way below with specifying locale but these behaviors are
reproduced:

- `LC_ALL=ja_JP.UTF-8 wine cherry.exe` and open CJK path files
- `LANG=ja_JP.UTF-8 wine cherry.exe` and open CJK path files

I feel this may not be a problem about WineHQ, may be simply a problem about my
locale settings, but I cannot resolve this so report as a bug.