fix

web/repertory/lib/models/auth.dart

@@ -74,9 +74,8 @@ class Auth with ChangeNotifier {
     _authenticated = false;
     _key = SecureKey.random(constants.sodium, 32);
     _user = "";
+    mountList?.clear(notify: false);
 
     notifyListeners();
-
-    mountList?.clear();
   }
 }

web/repertory/lib/models/mount_list.dart

@@ -16,11 +16,7 @@ class MountList with ChangeNotifier {
 
   MountList(this._auth) {
     _auth.mountList = this;
-    _auth.addListener(() {
-      if (_auth.authenticated) {
-        _fetch();
-      }
-    });
+    _auth.addListener(_listener);
   }
 
   List<Mount> _mountList = [];
@@ -177,8 +173,12 @@ class MountList with ChangeNotifier {
     return ret;
   }
 
-  void clear() {
+  void clear({bool notify = true}) {
     _mountList = [];
+    if (!notify) {
+      return;
+    }
+
     notifyListeners();
   }
 
@@ -198,4 +198,16 @@ class MountList with ChangeNotifier {
 
     Future.delayed(Duration(seconds: 1), _fetch);
   }
+
+  void _listener() {
+    if (_auth.authenticated) {
+      _fetch();
+    }
+  }
+
+  @override
+  void dispose() {
+    _auth.removeListener(_listener);
+    super.dispose();
+  }
 }