The TcxNavigator's hints are not shown if the form's BorderStyle property is bsDialog

Hi,

I am having issues with navigator hints: in our application, there are a couple of places where the hints don't show.
I made sure that the view's OptionsBehavior.NavigatorHints is true, that OptionsView.Navigator is true and that at least some of the navigator buttons are visible and enabled. Still, in two places the hints don't show. In both cases, the grid is in a from called with ShowModal. However, when I create a simple application to recreate those conditions, the hints show just fine...

I traced in the code and fond something "interesting" in cxContainer.pas

function CanShowHint(AControl: TWinControl): Boolean;
  function GetForm(AWnd: HWND; out AForm: TCustomForm;
    out AFormStyle: TFormStyle): Boolean;
  var
    AControl: TWinControl;
  begin
    AControl := FindControl(AWnd);
    Result := AControl is TCustomForm;
    if Result then
    begin
      AForm := TCustomForm(AControl);
      AFormStyle := TCustomFormAccess(AForm).FormStyle;
    end;
  end;

[...]

begin
  Result := Application.Active and AControl.HandleAllocated and
    IsWindowVisible(AControl.Handle) and
    (FindVCLWindow(GetMouseCursorPos) = AControl);
  if Result then
  begin
    ARootParent := GetRootParent(AControl.Handle);
    Result := not GetForm(ARootParent, AForm, AFormStyle) or
      AForm.Active or (AFormStyle = fsMDIForm) or (FVisiblePopupWindowList.Count > 0) and
      IsChild(ARootParent, TcxCustomPopupWindow(FVisiblePopupWindowList[0]).OwnerControl.Handle);
  end;
end;

I don't understand the "not" in front of "not GetForm(ARootParent, AForm, AFormStyle"). When I remove it, the hints show fine.
The rest of the statement uses AForm, which does not get a value if GetForm returns false (from what I see). So that "not" loooks suspicious to me.

Could you look into this? I hope I am not missing something obvious!

Thanks,
Christophe