False positive in "Invoke single-threaded types on Main thread" #1670

            private JoinableTaskContext joinableTaskContext;
            public int Invoke(IVsInvokablePrivate pInvokable)
            {
                try
                {
                    return this.joinableTaskContext.Factory.Run(async delegate
                    {
                        await this.joinableTaskContext.Factory.SwitchToMainThreadAsync();
                        return pInvokable.Invoke(); // Fires
                    });
                }
                catch (Exception ex)
                {
                    return Marshal.GetHRForException(ex);
                }
            }