[simcop2387]

An easy way to do that, is the way I tend to do it; Create a new branch based off the one you're rewriting history in, and that will actually keep all of that for you even after you rewrite it all. Makes it really easy to restore later with git reset if you need it.

[Myrmornis]

Yes, this is how beginners should be taught to "back up" in git.

[simcop2387]

In the interest of making this easier:

    git branch branchname-backup
    #do dangerous stuff ...
    # whoops I just broke the branch really bad I'll start over
    git reset branchname-backup