Save workflow after every change or a certain amount of time.
I also think this would be a great feature to have, but with one stipulation. I would personally prefer to have the option of toggling the auto-save on and off myself, rather than always have it be on by default.
There are some times when I’m not sure if what I’m going to change will break something else in my workflow, so in those situations I would still want the control of being able to save only after I have confirmed my change didn’t break anything. Otherwise, it would just be easier for me to revert the change by refreshing the page, rather than having to spend more time manually fixing or rebuilding what I changed because it autosaved right after I made the change.
Agree with Welcome