[Bug 18622] New: regedit: Changing a key's case results in "File Exists" error

http://bugs.winehq.org/show_bug.cgi?id=18622

Summary: regedit: Changing a key's case results in "File
                    Exists" error
           Product: Wine
           Version: 1.1.22
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Steps to reproduce:

- Create a new key, for example "Direct3d"
- Change the key's case to, for example, "Direct3D"
- An error pops up saying "File Exists"
- The key should be renamed accordingly instead