"Manage" button for Python kit doesn't work

1. Have python3 in PATH.
   For what it's worth, I don't have python in PATH, only python3.
2. Start Creator with parameter "-tcs".
3. Go to "Edit" -> "Preferences..." -> "Kits" -> "Kits".
   There is an autodetected kit using python3 from PATH.
4. Select the Python-based kit.
5. Click "Manage..."
   Nothing happens.

Clicking this button should probably take the user to "Python" -> "Interpreters".