[Bug 46816] New: Incorrect behavior of SHFileOperation

https://bugs.winehq.org/show_bug.cgi?id=46816

Bug ID: 46816
           Summary: Incorrect behavior of SHFileOperation
           Product: Wine
           Version: 4.0
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: shell32
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Behavior of SHFileOperation differs from windows.

Here is some trivial code that copies a directory:

const wchar_t *const sourceDir = L"C:\TestDir\0\0";
    const wchar_t *const destDir = L"C:\TestDir2\0\0";
    SHFILEOPSTRUCTW do_copy = { 0 };
    do_copy.wFunc = FO_COPY;
    do_copy.fFlags = FOF_NOCONFIRMMKDIR | FOF_NOCONFIRMATION | FOF_NO_UI;
    do_copy.pFrom = sourceDir;
    do_copy.pTo = destDir;
    SHFileOperationW(&do_copy);

If you add trailing backslash to destDir:

const wchar_t *const destDir = L"C:\TestDir2\\0\0";

On Windows result would be the same. However, on WINE+linux result would be
different:

no backslashes:

$ls TestDir
    file.txt  Subdir1  Subdir2
    $ls TestDir2
    file.txt  Subdir1  Subdir2

with trailing backslash:

$ls TestDir
    file.txt  Subdir1  Subdir2
    $ls TestDir2
    TestDir

This causes issues with programs that rely on Windows behavior.