Pop quiz: what does the following command do?
git commit -amend
If you said something along the lines of “modifies the last commit instead of making a new one,” you are not reading carefully enough. Stare at it for a bit before reading on.
At first, you may have confused this with:
git commit --amend
However, without the second dash, it’s equivalent to:
git commit -a -m end
Which stages any modified files (-a), and makes a new commit with the
commit message “end” (-m).
One of my coworkers hit this early this week. Fun times.