You don't even need `--reset-author`; the committer timestamp changes without it too: $ git init $ git commit -m hello --allow-empty [master (root-

You don't even need `--reset-author`; the committer timestamp changes without it too: $ git init $ git commit -m hello --allow-empty [master (root-commit) 1177c71] hello $ git commit --amend --no-edit --allow-empty [master (root-commit) 7dcb290] hello