[Bug 43949] New: WINEDEBUG=+relay does not work on armv7l (and/ or when CWD is a symlink)

https://bugs.winehq.org/show_bug.cgi?id=43949

Bug ID: 43949
           Summary: WINEDEBUG=+relay does not work on armv7l (and/or when
                    CWD is a symlink)
           Product: Wine
           Version: 2.19
          Hardware: arm
                OS: Linux
            Status: NEW
          Keywords: download, source
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

While getting logs for bug 43945, I Noticed that WINEDEBUG=relay does not work
(+tid,+seh were fine):

../../../tools/runtest -q -P wine -T ../../.. -M d3dx9_36.dll -p
d3dx9_36_test.exe.so mesh && touch mesh.ok
0047:trace:relay:load_list L"RelayExclude" =
L"ntdll.RtlEnterCriticalSection;ntdll.RtlTryEnterCriticalSection;ntdll.RtlLeaveCriticalSection;kernel32.48;kernel32.49;kernel32.94;kernel32.95;kernel32.96;kernel32.97;kernel32.98;kernel32.TlsGetValue;kernel32.TlsSetValue;kernel32.FlsGetValue;kernel32.FlsSetValue;kernel32.SetLastError"
0047:trace:relay:load_list L"RelayFromExclude" =
L"winex11.drv;winemac.drv;user32;gdi32;advapi32;kernel32"
0047:Call KERNEL32.__wine_kernel_init() ret=af0ff758
Warning: could not find DOS drive for current working directory
'/var/host/media/removable/SD Card/wine-git/dlls/d3dx9_36/tests', starting in
the Windows directory.
wine client error:47: write: Invalid argument
Makefile:369: recipe for target 'mesh.ok' failed
make: *** [mesh.ok] Error 1

If I remove +relay, it's fine.

Possibly relevant, CWD is $HOME/wine-git/dlls/d3dx9_36/tests, while
$HOME/wine-git is a symlink to /var/host/media/removable/SD Card/.