fix loading teamscore in admin

tournaments/admin.py

@@ -62,6 +62,10 @@ class TeamScoreAdmin(admin.ModelAdmin):
     list_filter = [TeamScoreTournamentListFilter]
     search_fields = ['id']
 
+    def get_queryset(self, request):
+        qs = super().get_queryset(request)
+        return qs.select_related('team_registration', 'match')
+
 class RoundAdmin(admin.ModelAdmin):
     list_display = ['tournament', 'name', 'index', 'parent']
     list_filter = [SimpleTournamentListFilter, SimpleIndexListFilter]