n doesn't step out of generator expressions

Say you have

``` py
if all(i == j for i, j in zip(range(10), range(10))):
print("yes")
```

and you `s`tep into the first line, so that you are inside the generator expression. Then press `n` ten times. After you reach the final iteration, the script will continue. What should happen is that it moves to the `print("yes")` line.