Here's what I did on my supposed-to-be-stable branch...
% git rebase master
First, rewinding head to replay your work on top of it...
Fast-forwarded alpha-0.3.0 to master.
% git status
# On branch alpha-0.3.0
# Your branch is ahead of 'origin/alpha-0.3.0' by 53 commits.
nothing to commit (working directory clean)
% git push
Fetching remote heads...
Updating remote server info
That was all a mistake as I later realized. I'd like to undo this entire process and revert the alpha-0.3.0 branch back to what it was.
What should I do?