tests: Update State Server's ownrecv test to flush the input first.
tests: Update State Server's ownrecv test to flush the input first.

blindsighttf2/Astron,ketoo/Astron,pizcogirl/Astron,blindsighttf2/Astron,pizcogirl/Astron,ketoo/Astron,ketoo/Astron,blindsighttf2/Astron,blindsighttf2/Astron,pizcogirl/Astron,pizcogirl/Astron,ketoo/Astron