Fix scope check in TodoListService so it does not null ref when the caller is direct instead of impersonated
Fix scope check in TodoListService so it does not null ref when the caller is direct instead of impersonated

Azure-Samples/active-directory-dotnet-daemon,AzureADSamples/Daemon-DotNet,AzureADSamples/Daemon-DotNet,AzureADSamples/Daemon-DotNet,Azure-Samples/active-directory-dotnet-daemon,Azure-Samples/active-directory-dotnet-daemon