web/repertory/lib/screens/add_mount_screen.dart

@@ -192,12 +192,15 @@ class _AddMountScreenState extends State<AddMountScreen> {
   }
 
   void _handleChange(String mountType) {
+    if (_mountType == mountType) {
+      return;
+    }
+
     setState(() {
       final changed = _mountType != mountType;
-
       _mountType = mountType;
       _mountNameController.text =
-          (mountType == 'Sia' && changed)
+          (mountType == 'Sia' && _mountNameController.text.isEmpty)
               ? 'default'
               : changed
               ? ''