[Bug 57804] New: cmd: CALL instruction freezes

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57804

Bug ID: 57804
           Summary: cmd: CALL instruction freezes
           Product: Wine
           Version: 10.0
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: P2
         Component: cmd
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Executing the 'CALL'-instruction on a *.bat file may causes freezes when using
e.g. '@echo off' in the called script.

```console
$ wine --version
wine-10.0 (Staging)
```

I inserted two minimal reproducers below that are used in the following
examples. Note that I marked the output of the scripts as comment with the REM
command as well as my own descriptions.

```cmd
C:>C:\working.bat
REM C:>echo Test
REM Test
REM Command returns immediately. No issue here

C:>C:\issue.bat
REM Test
REM Command returns immediately. No issue here

C:>CALL C:\working.bat
REM C:>echo Test
REM Test
REM Command returns immediately. No issue here

C:>CALL C:\issue.bat
REM Test
REM ISSUE: Command freezes here and never returns
```

working.bat:
```cmd
@echo on

echo Test
```

issue.bat:
```cmd
@echo off

echo Test
```

This issue was encountered while trying out PlanAhead, a tool included in the
Xilinx ISE design package. They use multiple batch scripts to configure the
environment before starting the GUI application. Because the batch files do not
work properly the GUI does not start at all. I.e. the application (PlanAhead)
is completely unusable.