anchor.diff:      );
     }
   
  -  Widget _buildLoadingPage() => AppPage(
  +  Widget _buildLoadingPage(BuildContext context) => AppPage(
           title: Text(AppLocalizations.of(context)!.fido_webauthn),
           centered: true,
           child: const CircularProgressIndicator(),
  
positive.code:     if (state.credMgmt) {
        final data = ref.watch(credentialProvider(node.path)).asData;
        if (data == null) {
          return _buildLoadingPage();
        }
        final creds = data.value;
        if (creds.isNotEmpty) {
  
negative.code:     if (state.bioEnroll != null) {
        final data = ref.watch(fingerprintProvider(node.path)).asData;
        if (data == null) {
          return _buildLoadingPage(context);
        }
        final fingerprints = data.value;
        if (fingerprints.isNotEmpty) {
  