AlertWindow::show() only sets window to always on top if there are other always on top windows

modules/juce_gui_basics/windows/juce_AlertWindow.cpp

@@ -593,7 +593,7 @@ private:
 
         jassert (alertBox != nullptr); // you have to return one of these!
 
-        alertBox-> setAlwaysOnTop (true);
+        alertBox->setAlwaysOnTop (juce_areThereAnyAlwaysOnTopWindows);
 
        #if JUCE_MODAL_LOOPS_PERMITTED
         if (modal)