But now it’s unclear whether Max, who is transgender, will get to sing as Ali Hakim, the Persian peddler. Through a whiplash of sudden policy changes about the gender of performers and public hand-wringing about the revered American musical’s content, Sherman school officials have effectively cast Max as the lead in a very different drama playing out in real life. It’s more akin to the civil rights fight of “Hairspray” than the love triangle in “Oklahoma!” After Max was bumped from the chorus to the supporting role, the school pulled aside him and several of his fellow student thespians. High...