undo git commit after push

git reset <hash> # Run this then merge, commit, and pushgit reset --hard <last_working_commit_id>
So we must not reset to the commit_id that we don't want.

Then sure, we must push to remote branch:

git push --forcegit reset <previous label or sha1>
git commit -am "blabla"
git push -f <remote-name> <branch-name>git reset HEAD~      
git reset # commitId
# Exemple
git reset 5310517To reset a brancj to some good commit:

In the server, move the cursor back to the last known good commit:

git push -f origin <last_known_good_commit>:<branch_name>

Locally, do the same:

git reset --hard <last_known_good_commit>
#         ^^^^^^
#         optional