関連ワード:  github how to undo a commit and push    git how to undo a commit and push    git how to revert a commit and push    git how to undo a commit before push    git how to undo a commit after push    git how to undo last commit and push    git how to undo a commit not pushed    github how to revert a commit after push    git how to revert a commit after push    git how to cancel a commit before push