Reminder is still receiving after scheduler (for stop) has triggered

Preconditions:

1. Notebook is in running status
2. Scheduler by time is set up for Notebook stopping

Steps to reproduce:

1. Wait till scheduler for stop  will triggers
2. Start the notebook
3. Wait till notebook will be in running status
4. Click 'Refresh' button or go to any page

Actual result:

1. Reminder show up after notebook stopping

Expected result:

1. Reminder does not  show up after notebook stopping