Git: Undoing rewrite of history?

Question

I have a problem with the following situation:

• several commits are pushed to a remote (our codereview system)
• developer has rewritten history (edited some commit during a rebase) locally
• when attempting to push again, codereview does not accept it (as this change can already haved passed review)

How can I 'reset' a -single- commit to what is in this remote?

The modified commit is not always HEAD, so I cannot simply do 'git reset --hard HEAD^ && git pull'.

edit:

Preferably the diff between the two versions are created as a new commit, but it is not really a necessity.

Answer 1

Check the reflog with:

git reflog

Then pick the HEAD that corresponds to the commit of your choice, e.g.

git reset --hard HEAD@{5}

would reset your branch to the point HEAD pointed at five commits ago.