bypass check for flutter ownership

lib/components/pages/traction.dart

@@ -21,6 +21,7 @@ class TractionPage extends StatefulWidget {
 
 class _TractionPageState extends State<TractionPage> {
   final _classController = TextEditingController();
+  final _classFocusNode = FocusNode();
   final _numberController = TextEditingController();
   bool _mileageFirst = true;
   bool _initialised = false;
@@ -37,6 +38,12 @@ class _TractionPageState extends State<TractionPage> {
   final _domainController = TextEditingController();
   final _typeController = TextEditingController();
 
+  @override
+  void initState() {
+    super.initState();
+    _classController.addListener(_onClassTextChanged);
+  }
+
   @override
   void didChangeDependencies() {
     super.didChangeDependencies();
@@ -52,7 +59,9 @@ class _TractionPageState extends State<TractionPage> {
 
   @override
   void dispose() {
+    _classController.removeListener(_onClassTextChanged);
     _classController.dispose();
+    _classFocusNode.dispose();
     _numberController.dispose();
     _nameController.dispose();
     _operatorController.dispose();
@@ -131,6 +140,15 @@ class _TractionPageState extends State<TractionPage> {
     _refreshTraction();
   }
 
+  void _onClassTextChanged() {
+    if (_selectedClass != null &&
+        _classController.text.trim() != (_selectedClass ?? '')) {
+      setState(() {
+        _selectedClass = null;
+      });
+    }
+  }
+
   @override
   Widget build(BuildContext context) {
     final data = context.watch<DataService>();
@@ -202,9 +220,8 @@ class _TractionPageState extends State<TractionPage> {
                               (c) => c.toLowerCase().contains(query),
                             );
                           },
-                          initialValue: TextEditingValue(
-                            text: _classController.text,
-                          ),
+                          textEditingController: _classController,
+                          focusNode: _classFocusNode,
                           fieldViewBuilder:
                               (
                                 context,
@@ -212,7 +229,6 @@ class _TractionPageState extends State<TractionPage> {
                                 focusNode,
                                 onFieldSubmitted,
                               ) {
-                                controller.value = _classController.value;
                                 return TextField(
                                   controller: controller,
                                   focusNode: focusNode,
@@ -220,9 +236,6 @@ class _TractionPageState extends State<TractionPage> {
                                     labelText: 'Class',
                                     border: OutlineInputBorder(),
                                   ),
-                                  onChanged: (val) {
-                                    _classController.text = val;
-                                  },
                                   onSubmitted: (_) => _refreshTraction(),
                                 );
                               },