Fix game getting stuck in a do-while loop when "team follow1" or "tea…

…m follow2" client sends a follownext or followprev command.

code/game/g_cmds.c

@@ -749,6 +749,16 @@ void Cmd_FollowCycle_f( gentity_t *ent, int dir ) {
 		G_Error( "Cmd_FollowCycle_f: bad dir %i", dir );
 	}
 
+	// if dedicated follow client, just switch between the two auto clients
+	if (ent->client->sess.spectatorClient < 0) {
+		if (ent->client->sess.spectatorClient == -1) {
+			ent->client->sess.spectatorClient = -2;
+		} else if (ent->client->sess.spectatorClient == -2) {
+			ent->client->sess.spectatorClient = -1;
+		}
+		return;
+	}
+
 	clientnum = ent->client->sess.spectatorClient;
 	original = clientnum;
 	do {