fix

migrate.ts

@@ -90,7 +90,10 @@ async function migrateMatch(match: Match) {
         winner_id = newParticipantNameMap.get(winnerName).id;
         console.log(`Migrating match ${currentMatchPlayer1Name} vs ${currentMatchPlayer2Name} with winner ${winnerName}.`);
     } else {
-        winner_id = oldMatch.winner_id || 'tie';
+        winner_id = oldMatch.winner_id;
+        if (oldMatch.scores_csv === "0-0") {
+            winner_id = 'tie';
+        }
         console.log(`Migrating match ${currentMatchPlayer1Name} vs ${currentMatchPlayer2Name} with result ${winner_id}.`);
     }
     const oldPlayerIds = [oldMatch.player1_id, oldMatch.player2_id]