[Bug 48917] New: Starting a shell script via "cmd /c start /b /wait /d" does not work anymore

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48917

Bug ID: 48917
           Summary: Starting a shell script via "cmd /c start /b /wait /d"
                    does not work anymore
           Product: Wine
           Version: 5.6
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: cmd
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Until Wine 5.5 (staging) the following worked, but with 5.6 (staging) it does
not anymore:

wine cmd /c start /b /wait /d "C:\users\user\AppData\alobby"
"C:\alobby\run_unix_openvpn" "C:\users\user\AppData\alobby" user.ovpn

What the "run_unix_openvpn" (chmod +x) Shell-Script does is following:

pkexec /usr/bin/env openvpn --writepid "`wine winepath -u "$1"`/vpn.pid" 
--log "`wine winepath -u "$1"`/vpn.log" --verb 3 --daemon "alobby_openvpn"
--config "`wine winepath -u "$1"`/$2"

The error I get with 5.6 is pretty strange:
 /vpn.log: No such file or directory (errno=2)ecting stdout/stderr to --log
file: /home/user/.wine/dosdevices/c:/users/user/AppData/alobby

This is used by the Windows application "aLobby" ( https://lobby.siedler3.net/
) (that is basically a multiplayer lobby for the Windows game "The Settlers 3")
to establish an OpenVPN connection via the native Linux openvpn, as there seems
to be no way of successfully running the Windows-OpenVPN via Wine...