Comment 3 for bug 1566437

> If it gets stuck in this mode at your shell prompt,

yes it did

> it means that your application did not exit cleanly and left the terminal in this mode.

The very fact that that can happen is a bug. After exiting whatever application triggered "alternate screen", normal scrolling should be reestablished. The terminal shouldn't rely on applications exiting cleanly.

Also note that the behavior described at point (3) (the scrollwheel behaving like the up and down keys) makes no sense, it's inconsistent, useless and annoying. It should be eliminated altogether.