Nikolay Sivov (@nsivov) commented about dlls/shell32/ebrowser.c:
- return change_viewmode(This, This->fs.ViewMode); + if (!This->psv) + return E_INVALIDARG; + + hr = IShellView_QueryInterface(This->psv, &IID_IFolderView2, (void *)&view); + if (SUCCEEDED(hr)) + { + hr = IFolderView2_SetCurrentViewMode(view, This->fs.ViewMode); + if (SUCCEEDED(hr)) + { + if (SUCCEEDED(hr)) + { + hr = IFolderView2_SetCurrentFolderFlags(view, ~FWF_NONE, FWF_NONE); + if (SUCCEEDED(hr)) + hr = IFolderView2_SetCurrentFolderFlags(view, This->fs.fFlags, This->fs.fFlags); + } My earlier comments affect this too. We need some more tests for setting flags, but I suspect you will simply need to call as (~0u, This->fs.flags).
-- https://gitlab.winehq.org/wine/wine/-/merge_requests/2628#note_29585