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Is it possible to undo a git reset?

For some reason, I just wanted to undo a commit on my git repository, which I've done with the following command:

    git reset --soft HEAD~1

So far, so good. However, by mistake I issued the command a second time, thus deleting also an earlier commit. It also turned out that I had forgotten to push that change.

Now I do have a backup of the previous state, but that's on an external disk that's at a different place than me currently.

Now the change itself was pretty trivial (and of course is still contained in the collective changes in the working directory; indeed I could just re-apply it by checking in one file), but of course all the metadata is gone (in particular, the change date).

Now I'd like to not wait until I have access to the hard disk with the backup again, but I'd also like not to lose that metadata in the repo.

Does git have the possibility to restore the deleted update somehow? The mistaken reset currently is the last thing done on the repo.

If not, is it possible to just commit new stuff (that includes that change), and then later re-insert that version in the version history from the backup, so that afterwards it looks as if the commit had never been deleted?