The cause:

A  feature branch may occasionally become stale and not be merged into main. A pull request might occasionally be closed without being merged.

The solution:

You need to done the perform, you will undo a cherry-pick.

$ git stash
$ git reset --hard HEAD^
$ git stash pop # or `git stash apply`, if you want to keep the changeset in the stash

When I stay local and no change.

$ git reset --hard HEAD^