COMDLG_FILTERSPEC file pattern appended to filter name if it includes more than one asterisc

Question

I had this code that uses the legacy API function GetOpenFileName

#include <windows.h>
 
int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE, PWSTR pCmdLine, int nCmdShow)
{
    OPENFILENAME ofn;
    char szFile[260];
    HWND hwnd = NULL;
    HANDLE hf;
 
    
    ZeroMemory(&ofn, sizeof(ofn));
    ofn.lStructSize = sizeof(ofn);
    ofn.hwndOwner = hwnd;
    ofn.lpstrFile = szFile;    
    ofn.nMaxFile = sizeof(szFile);
    ofn.lpstrFilter = "Txt files (*.txt)\0*.txt\0Task files (*01.*)\0*01.*\0";
    ofn.nFilterIndex = 1;
    ofn.lpstrFileTitle = NULL;
    ofn.nMaxFileTitle = 0;
    ofn.lpstrInitialDir = NULL;
    ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
 
    if (GetOpenFileName(&ofn)==TRUE) 
        hf = CreateFile(ofn.lpstrFile, GENERIC_READ,
            0, (LPSECURITY_ATTRIBUTES) NULL,
            OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
            (HANDLE) NULL);
 
    return 0;
}

The filter name "Task files (*01.*)" is correctly shown in the dialog:

enter image description here

I've rewritten the code to use the FileDialog object as follows:

#include <windows.h>
#include <shobjidl.h> 

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE, PWSTR pCmdLine, int nCmdShow)
{
    HRESULT hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED | 
        COINIT_DISABLE_OLE1DDE);
    if (SUCCEEDED(hr))
    {
        IFileOpenDialog *pFileOpen;
        hr = CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_ALL, 
                IID_IFileOpenDialog, reinterpret_cast<void**>(&pFileOpen));       
        if (SUCCEEDED(hr))
        {
            COMDLG_FILTERSPEC fileTypes[] =
            {
               {L"Txt files (*.txt)", L"*.txt"},
               {L"Task files (*01.*)", L"*01.*"},
             };
             hr = pFileOpen->SetFileTypes(ARRAYSIZE(fileTypes), fileTypes);
             if (SUCCEEDED(hr))
             {
            hr = pFileOpen->Show(NULL);
            pFileOpen->Release();
        }
        CoUninitialize();
      }
    }
    return 0;
}

But now the filter name is garbled, as the pattern is appended to it.

enter image description here

Is it a bug in the FileDialog object or am I doing something wrong?