Is there a way to get Kerbals to stop being tourist if supplies run out? I had a crew of three on a space station run out and become tourists, but even after refueling their supplies they don't change back to crew members. I know that returning them to Kerbin will switch them back, but is there no way to fix them in-stitu? It's a little harsh to brick the space station orbiting Eve even when resupplied.