fix error w gs team

tournaments/models/group_stage.py

@@ -197,6 +197,7 @@ class GroupStageTeam:
         self.display_set_difference = False
         self.weight = team_registration.weight
         self.team_registration = team_registration
+        self.walk_out = team_registration.walk_out
 
     def wins_losses(self):
         return f"{self.wins}/{self.losses}"