In my experience in the last week or two:

Occasionally those buttons don't work.
When they do work, it would still be useful to have a "revert to currently published version."

While all the various suggestions here in this thread and in Zendesk Support sessions are useful and tangent (related) to what's being asked, there are times when you actually need to revert to what's published.

Answering other things that are "close" doesn't answer the need at hand.

The good news is that this ask would be hugely helpful to those who need it and should be insanely easy to implement. :)