Fix overwriting of match results

server.py

@@ -219,10 +219,10 @@ class LeaderboardServer:
             return None
         
         model_tournament_table = []
-        match_results = {}
         
         with self.var_lock.ro:
             for competitor_id in self.tournament_results[submission_id].keys() - {submission_id}: # without self
+                match_results = {}
                 match_results["competitor_id"] = competitor_id
                 for task in self.tournament_results[submission_id][competitor_id]:
                     task_category = self.TASKS_METADATA[task]["category"]