refs #438, do not change comboxbox from backend.

Use a field to display the really selected driver and let the user choice unchanged works best for me

src/blackgui/components/infobarstatuscomponent.cpp

@@ -108,6 +108,7 @@ namespace BlackGui
                 QString s(
                     getIContextSimulator()->getSimulatorPluginInfo().getDescription() + ": " +
                     ISimulator::statusToString(status));
+
                 // at least connected
                 if (status & ISimulator::Paused)
                 {

src/blackgui/components/settingssimulatorcomponent.cpp

@@ -254,8 +254,8 @@ namespace BlackGui
             // disable / enable driver specific GUI parts
             bool hasFsxDriver = this->getIContextSimulator()->getAvailableSimulatorPlugins().supportsSimulator(QStringLiteral("fsx"));
 
-            // combobox
-            setCurrentPluginInComboBox(info);
+            // I intentionally to not set the selected plugin combobox here
+            // as this would cause undesired rountrips
 
             // other GUI values
             if (!info.isUnspecified())