Add new fallback state as prefactor for routing (#5065)

packages/cli/src/ui/App.tsx

@@ -398,6 +398,7 @@ const App = ({ config, settings, startupWarnings = [], version }: AppProps) => {
 
       // Switch model for future use but return false to stop current retry
       config.setModel(fallbackModel);
+      config.setFallbackMode(true);
       logFlashFallback(
         config,
         new FlashFallbackEvent(config.getContentGeneratorConfig().authType!),