[Bug 46380] New: user32/tests/ winstation.c leaves behind an explorer window under valgrind

https://bugs.winehq.org/show_bug.cgi?id=46380

Bug ID: 46380
           Summary: user32/tests/winstation.c leaves behind an explorer
                    window under valgrind
           Product: Wine
           Version: 4.0-rc4
          Hardware: x86
                OS: Linux
            Status: NEW
          Keywords: download, source, testcase, valgrind
          Severity: normal
          Priority: P2
         Component: user32
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: Gentoo

This is likely a regression, though I haven't checked/bisected.

If I do:
$ cd $WINE/dlls/user32/tests/
$ make winstation.ok

The tests finish (with one failure, bug 36676), and no explorer process
remaining according to ps.

If I instead do:
$ . ~/vg-wrapper.sh
$ cd $WINE
$ ./wine start /min winemine
$ cd $WINE/dlls/user32/tests/
$ make winstation.ok

The tests again complete, but there's an orphaned explorer process that sticks
around:
austin    5790 15.5  1.1 2179776 186928 pts/4  Sl   22:59   0:26 valgrind
/home/austin/wine-valgrind/loader/wine-preloader
/home/austin/wine-valgrind/loader/wine C:\windows\system32\ex
plorer.exe /desktop

Which screws up my scripts, as they wait for wineserver -w to consider the
tests to be done. I have to manually kill that process afterward.

I'll try to see if it's a regression as time permits over next few days.