Git: rebase onto development branch from upstream

Question

I have local master and develop branches. I do all my work on develop and then merge them into master for releases. There is

Answer 1

The rebase would actually be:

git checkout develop
git rebase upstream/master

(git rebase should read: "rebase my current branch, here develop, on top of target branch, here upstream/master")

And the end result wouldn't be a detached head, but the newly rewritten develop branch.