bob$ git reset --hard b006000000000000000000000000000000000000
HEAD is now at b006000 Use an O(log(n)) algorithm instead of one that takes O(n).
bob$ git commit --amend --allow-empty --reuse-message=HEAD
[main b010000] Use an O(log(n)) algorithm instead of one that takes O(n).
 Author: Carol <carol@example.org>
 Date: Fri Feb 21 08:42:15 2025 +0100
 1 file changed, 21 insertions(+), 7 deletions(-)
