Submission: fix submission of flags
Submission: fix submission of flags

Broken in e2fabb5 ("Introduce net numbers to make teams more anonymous",
2020-06-20)

fausecteam/ctf-gameserver,fausecteam/ctf-gameserver,fausecteam/ctf-gameserver,fausecteam/ctf-gameserver,fausecteam/ctf-gameserver