Fix bug where team captain ID could not exist if the user somehow ends up as the only person on the team but isn't team captain
Fix bug where team captain ID could not exist if the user somehow ends up as the only person on the team but isn't team captain

mitre-cyber-academy/registration-app,mitre-cyber-academy/ctf-scoreboard,mitre-cyber-academy/registration-app,mitre-cyber-academy/ctf-scoreboard,mitre-cyber-academy/ctf-scoreboard,mitre-cyber-academy/ctf-scoreboard,mitre-cyber-academy/registration-app