mizililo

fix ipykernel #799 by removing publish_status in process_control

2

because control_channel shouldn't publish execution_state

<debug_request> publish the <status:idle> while an <execute_request> is running

5

In ipykernel 5.5.6，both and put msgs into and process the msg with . Although both and publish the ，there are no conflicts. When it comes to ipykernel 6.5.0, put msgs...