Sample totalHits before modifying the overflow bitvector.

1 files changed, 2 insertions, 1 deletions

diff --git a/searchcore/src/vespa/searchcore/proton/matching/match_thread.cpp b/searchcore/src/vespa/searchcore/proton/matching/match_thread.cpp
index 52d7d906d4c..b57346611f1 100644
--- a/searchcore/src/vespa/searchcore/proton/matching/match_thread.cpp
+++ b/searchcore/src/vespa/searchcore/proton/matching/match_thread.cpp
@@ -374,6 +374,7 @@ MatchThread::processResult(const Doom & doom, search::ResultSet::UP result, Resu
         result->mergeWithBitOverflow(fallback_rank_value());
     }
     if (doom.hard_doom()) return;
+    size_t totalHits = result->getNumHits(); // Must be done before modifying overflow
     const search::RankedHit *hits = result->getArray();
     size_t             numHits   = result->getArrayUsed();
     search::BitVector *bits  = result->getBitOverflow();
@@ -394,7 +395,7 @@ MatchThread::processResult(const Doom & doom, search::ResultSet::UP result, Resu
         man.groupInRelevanceOrder(hits, numHits);
     }
     if (doom.hard_doom()) return;
-    fillPartialResult(context, result->getNumHits(), numHits, hits, bits);
+    fillPartialResult(context, totalHits, numHits, hits, bits);
 
     if (auto task = matchToolsFactory.createOnMatchTask()) {
         task->run(result->copyResult());