Undo/redo - user can undo the loading of the initial state (regression)

Actually, this is not passing tests yet, so there is no need for @jessebaker to review it just yet.

I'm 99% confident that all this needs is to merge in upstream changes — i.e. do:

git fetch origin
git merge origin/0.x
# then push

Still these bizarre Cypress CI job failures, both due to

/scripts-154519-2156301/step_script: line 352: cd: modules/custom/experience_builder: No such file or directory

… even though this is a super simple MR, this is somehow breaking

How?! 😳 🤯 I'm baffled. Anybody's got any ideas?

We need a test that would have caught this problem in the first place so we can ensure this fix remains in place.

Can this issue be covered/solved as the part of Fix undo/redo functionality 🐛 Fix undo/redo functionality Needs review issue?

#14: IMHO, yes, because it's a single-line fix, and that other issue is adding test coverage that's making it trivial to achieve that.

I have added the fix in this issue along with the test covering the scope of this issue.Saved credits for @syeda-farheen in here 🐛 Fix undo/redo functionality Needs review .I think we can close this issue now.