As I am typing a function or class in a python file, the code folding will activate with the open parenthesis but then deactivate with the close parenthesis and not reactivate until I go back and make a change (add a line then remove a line).

Here's an example. Typing:

def method(

the folding activates with the open paren. Continuing:

def method(arg)

the folding deactivates with the closing paren. Continuing:

def method(arg):
    pass

The folding stays inactive.

Adding a line in the immediate vicinity of the function (the line with "def" or one line above) activates code folding. Pressing undo afterward doesn't undo the activation of the code folding.


Reproducible: Always

Steps to Reproduce:
1. Open a python file.
2. Ensure the correct highlighting mode is active.
3. Create a function or class definition. Notice the folding becomes active with the opening paren and then deactivates with the closing paren.

Actual Results:  
No code folding

Expected Results:  
Code folding