Game sometimes forces you to be spectator in survival versus mode

[FurtadoPires]

This is a common issue in this mode

Sometimes when we are playing versus with 4x3 and someone joins the server, instead of allocating to the team with vacancy the game makes you being an spectator, and if you try to join any of those teams it won't let you (like if both teams were already full)

So you usually have to keep trying to join until the game lets you (usually 40 seconds latter), and if the spectator don't do it, he'll remain an spectator (and block a vacancy) until he leaves.

This bug usually happens after the game start to spawn bots to help the special infected team (4-5 minutes on the round), so I suspect it may be related to that.

To reproduce:
1 - Make a team of 4 survivors x 3 infected
2 - keep the surv team alive until the game start to spawn bots to help the infected
3 - After that make someone join the room and see if he'll enter as a spectator