Multiple errors about missing 'python.updateFeedbackCounter' command, followed by full VSCode UI lock-up

[dvelitchkov]

Environment data

VS Code version: 1.18.1
Python Extension version: 0.8.0
Python Version: 3.6.2
OS and version: OS X 10.12.6

Actual behavior

VSCode throws a bunch of exceptions and locks up the entire VSCode UI.

Expected behavior

Don't lock up VS Code.

Steps to reproduce:

• Open up VSCode
• Click a few times in a tab with Python code, or open an existing python file
• Eventually, UI locks up, forcing a restart

I've never had VSCode fully lock-up before 1.18.1, and disabling the Python extension seems to prevent that. I wish I could narrow down exactly what steps are needed for the lock-up to happen, I don't have anything definitive yet.

Logs

Output from Python output panel
Nothing interesting - Pylint output. No errors.

Output from Console window (Help->Developer Tools menu)

[DonJayamanne]

Duplicate of #245