Basic Cancel Takes time

[ZeyadKhattab]

While testing the service controls through example app test, I faced a strange error when there were messages in the example_app_queue and then I try to call freeze then make a get request.
To replicate the error: you can

1. remove the effects of the mentioned commit
2. run ExampleApp tests
3. run freeze test

This is the temporary fix we found

34d9952