IOWA CITY — Just days after a Republican lawmaker introduced a bill that would force Iowa’s public universities to hold graduations in-person this spring — after two of them already had announced plans for virtual ceremonies — all three campuses announced Monday they’re now developing in-person options. “The format will be designed to honor and celebrate the achievements of our graduates while practicing the university’s guidelines for social distancing and mandatory face coverings,” according to a University of Iowa announcement that reversing an earlier decision to keep all commencement celebrations virtual again this spring. Joining the UI in the about-face was the University of Northern Iowa.