Presiding over Social Security appeals, according to U.S. Magistrate Judge Iain D. Johnston, is like living the plot of the movie “Groundhog Day.”In a written opinion last week, Johnston instructed the Social Security Administration to consider a woman’s claim for disability benefits for the fourth time.The administrative law judges who considered Dawn T.’s case the last two times it was sent back made the same mistakes that prompted the remands, Johnston noted.One point of “Groundhog Day …