PM-5562: Preserve aggregate Marathon Match wins

src/apps/profiles/src/hooks/useFetchActiveTracks.spec.tsx

@@ -595,6 +595,38 @@ describe('getSubTrackSummaryStats', () => {
                 wins: 2,
             })
     })
+
+    it('keeps aggregate Marathon Match wins when legacy placement history is partial', () => {
+        const summaryStats = getSubTrackSummaryStats({
+            challenges: 225,
+            name: 'MARATHON_MATCH',
+            submissions: {
+                submissions: 7,
+            },
+            wins: 76,
+        } as MemberStats, [
+            {
+                challengeId: 'legacy-mm-1',
+                challengeName: 'Legacy Marathon Match 1',
+                newRating: 1210,
+                placement: 122,
+                ratingDate: 1301961600000,
+            },
+            {
+                challengeId: 'legacy-mm-2',
+                challengeName: 'Legacy Marathon Match 2',
+                newRating: 1218,
+                placement: 145,
+                ratingDate: 1302652800000,
+            },
+        ])
+
+        expect(summaryStats)
+            .toEqual({
+                submissions: 7,
+                wins: 76,
+            })
+    })
 })
 
 describe('getTrackSummaryStats', () => {

src/apps/profiles/src/hooks/useFetchActiveTracks.tsx

@@ -120,7 +120,8 @@ export const getSubTrackDisplaySubmissionCount = (subTrack?: MemberStats): numbe
  * Some unified stats rows currently include challenge/rating history while the
  * aggregate win or submission counters are stale, omitted, or left at zero. In
  * that case, placement-bearing history is used for wins and history/challenge
- * count is used as the minimum visible submission count.
+ * count is used as the minimum visible submission count. Legacy Marathon Match
+ * history is partial, so its explicit aggregate win counter remains authoritative.
  *
  * @param {MemberStats | undefined} subTrack - The subtrack to summarize.
  * @param {StatsHistory[]} trackHistory - Optional history rows for the same subtrack.
@@ -130,16 +131,21 @@ export const getSubTrackSummaryStats = (
     subTrack?: MemberStats,
     trackHistory: StatsHistory[] = [],
 ): SubTrackSummaryStats => {
-    const statWins = getFiniteNumber(subTrack?.wins) ?? 0
+    const aggregateWins = getFiniteNumber(subTrack?.wins)
+    const statWins = aggregateWins ?? 0
     const historyWithPlacements = trackHistory
         .filter(history => getFiniteNumber(history.placement) !== undefined)
     const historyWins = historyWithPlacements.filter(history => history.placement === 1).length
     const displaySubmissions = getSubTrackDisplaySubmissionCount(subTrack) ?? 0
     const historySubmissions = trackHistory.length
+    const hasAuthoritativeAggregateWins = subTrack?.name === 'MARATHON_MATCH'
+        && aggregateWins !== undefined
 
     return {
         submissions: Math.max(displaySubmissions, historySubmissions),
-        wins: historyWithPlacements.length > 0 ? historyWins : statWins,
+        wins: historyWithPlacements.length > 0 && !hasAuthoritativeAggregateWins
+            ? historyWins
+            : statWins,
     }
 }