Crashes when a window is moved to the scratchpad

[alfredjophy]

Here's the traceback

Traceback (most recent call last):
  File "/usr/sbin/swayblur", line 8, in <module>
    sys.exit(main())
  File "/usr/lib/python3.10/site-packages/swayblur/__main__.py", line 122, in main
    blurManager.start()
  File "/usr/lib/python3.10/site-packages/swayblur/blurManager.py", line 92, in start
    self.SWAY.main()
  File "/usr/lib/python3.10/site-packages/i3ipc/connection.py", line 514, in main
    raise loop_exception
  File "/usr/lib/python3.10/site-packages/i3ipc/connection.py", line 497, in main
    while not self._event_socket_poll():
  File "/usr/lib/python3.10/site-packages/i3ipc/connection.py", line 477, in _event_socket_poll
    raise e
  File "/usr/lib/python3.10/site-packages/i3ipc/connection.py", line 474, in _event_socket_poll
    self._pubsub.emit(event_name, event)
  File "/usr/lib/python3.10/site-packages/i3ipc/_private/pubsub.py", line 28, in emit
    s['handler'](self.conn, data)
  File "/usr/lib/python3.10/site-packages/swayblur/blurManager.py", line 97, in handleMove
    containerOutput = container.workspace().ipc_data['output']
KeyError: 'output'