Removing a Contributor from Repository History After Reverting a Commit he made?

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So I used a shared computer the other day and accidentally made commits from it that added another contributor to my repository. However, I reverted those commits the same day, and the person and commits were removed from the contributor list. Today, I used the same machine again and cloned the same repository, but never made any commits. Despite that, the person got listed again as a contributor. How did this happen, and how can I remove them?

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Found a possible solution
https://stackoverflow.com/questions/69448215/remove-invalid-contributor-from-github