[Bug 51681] New: Filepaths (or file URLs) including spaces do not convert properly to Unix paths

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=51681

Bug ID: 51681
           Summary: Filepaths (or file URLs) including spaces do not
                    convert properly to Unix paths
           Product: Wine
           Version: 6.13
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Our application is a C#/WPF dot net Framework app. When we try to open a
generated PDF (or any file type) where the path or filename itself contain
spaces using Process.Start(...), the following error gets written to the
console:

winebrowser:wmain Failed to convert file URL to unix path

And the filepath gets truncated to the first space. At that point, nothing else
happens.

I have attempted to escape the spaces, convert the filepath to a file URL
(which also escapes the spaces), but nothing seems to make a difference.