[Bug 52107] New: %ERRORLEVEL% shall not be reset when setting an environment variable in a batch file

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=52107

Bug ID: 52107
           Summary: %ERRORLEVEL% shall not be reset when setting an
                    environment variable in a batch file
           Product: Wine
           Version: 6.22
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: cmd
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail]
      Distribution: ---

The fix in https://bugs.winehq.org/show_bug.cgi?id=47791 (commit
617d14bc1238b57327a8400eda1c1ab22624beb7) is incomplete; it only applies to
interactive case, and the bug is left unchanged for the batch mode case.

When a variable is successfully set, %ERRORLEVEL% is left as-is regardless of
whether the interpreter is in batch mode or not.

See also: https://ss64.com/nt/set.html