関連ワード:  how to discard changes in git commit    how to revert changes in git commit    how to undo changes in git commit    how to discard changes in git before commit    how to discard changes in git after commit    how to revert changes in git after commit    how to revert changes in git before commit    how to revert changes in git using commit id    how to undo changes in git before commit    how to revert specific file changes in git commit