Fixed [2.1.18] Enter Game causes Synch failure when on server with Team Change disabled

So, when I joined a Match server earlier, it seemed that team changing was disabled, so when I tried to join through Enter Game in the menu, instead of just using the controls from spectator mode, it kicked me, due to the synch failure caused.

I would either suggest making it so that spectator mode does not count as a team when it comes to disabling team changing, or making it so that using Enter Game from the menu gives the same error as when you hit the fire key in spectator mode.

Using changeteam in the console also accomplishes this.

http://mb.srb2.org/showthread.php?t=37076

Was a problem back in 2.0 and never fixed.

Oh wow I didn't spot this before... anyhow, this merge request should fix all issues with the allowteamchange variable: http://git.magicalgirl.moe/STJr/SRB2/merge_requests/168