Recently, one of my goals was to ask a Sim to move in. I completed it but the sirname of the Sim that moved in has changed to the same sirname as theSm they moved in with. To explain more: I have a Jenna Marbles and a Sheldon Cooper. Sheldon moved in with Jenna but now Sheldons name is Sheldon Marbles. Is there any way I can change his name back to Sheldon Cooper?