supplier client sections working with problematic authentication still active

app/models/list/join_requests.rb

@@ -17,8 +17,8 @@ class List
       #unless join_request_user_ids.include?(requester.id) or user_ids.include?(requester.id) # do not resend
       unless user_ids.include?(requester.id) # resend for the sake of it for now
         @join_requests = nil # bust cache
+        self.join_request_user_ids_will_change!
         self.join_request_user_ids |= [requester.id]
-        self.is_dirty
         if save
           broadcast_users 'user_join_request', payload: Users::JoinRequestSerializer.serialize(join_request_for_user(requester), include: %w[list user])
         end
@@ -31,7 +31,7 @@ class List
         user.active_list_id = self.id
         add_user(user)
         user.save
-        self.is_dirty
+        join_request_user_ids_will_change!
         save and broadcast_users 'join_request_approved', id: "jr-#{user.id}"
       end
     end
@@ -39,8 +39,8 @@ class List
     def reject_join_request_for_user!(user_id)
       user_id = user_id.id if user_id.is_a?(User) # allow model to be passed as argument
       if join_request_user_ids.include?(user_id)
+        join_request_user_ids_will_change!
         join_request_user_ids.delete(user_id)
-        self.is_dirty
         if save
           # user_id is not part of the list, so should be broadcasted separately
           broadcast_user user_id, 'join_request_rejected', id: "jr-#{user_id}"