RuntimeError: wrapped C/C++ object of type ConsoleView has been deleted

[julien-duponchelle]

https://sentry.io/gns3/gns3-gui/issues/209938486/

RuntimeError: wrapped C/C++ object of type ConsoleView has been deleted
(3 additional frame(s) were not displayed)
...
  File "logging/__init__.py", line 1416, in _log
    self.handle(record)
  File "logging/__init__.py", line 1426, in handle
    self.callHandlers(record)
  File "logging/__init__.py", line 1488, in callHandlers
    hdlr.handle(record)
  File "logging/__init__.py", line 856, in handle
    self.emit(record)
  File "gns3/console_view.py", line 45, in emit
    self._console_view.write_message_signal.emit("{}\n".format(message), "error")

RuntimeError: wrapped C/C++ object of type ConsoleView has been deleted