関連ワード:  git how do i undo a commit    git how do you revert a commit    github how do i revert a commit    how do i undo a github commit    git how to undo a commit before push    git how to undo a commit after push    git how to undo a commit but keep changes    git how to undo a commit without losing changes    git how to undo a commit and keep changes    git how to undo a commit locally