From 750734df34fe4362c3037a809238997f317997cd Mon Sep 17 00:00:00 2001
From: Ansis Brammanis <ansis@mapbox.com>
Date: Tue, 22 May 2018 16:08:00 -0400
Subject: [core] fix deduping rings in querying, #11357

---
 src/mbgl/geometry/feature_index.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mbgl/geometry/feature_index.cpp b/src/mbgl/geometry/feature_index.cpp
index 7dc46c4dfc..ffb1d6e72d 100644
--- a/src/mbgl/geometry/feature_index.cpp
+++ b/src/mbgl/geometry/feature_index.cpp
@@ -25,13 +25,14 @@ void FeatureIndex::insert(const GeometryCollection& geometries,
                           std::size_t index,
                           const std::string& sourceLayerName,
                           const std::string& bucketLeaderID) {
+    auto featureSortIndex = sortIndex++;
     for (const auto& ring : geometries) {
         auto envelope = mapbox::geometry::envelope(ring);
         if (envelope.min.x < util::EXTENT &&
             envelope.min.y < util::EXTENT &&
             envelope.max.x >= 0 &&
             envelope.max.y >= 0) {
-            grid.insert(IndexedSubfeature(index, sourceLayerName, bucketLeaderID, sortIndex++),
+            grid.insert(IndexedSubfeature(index, sourceLayerName, bucketLeaderID, featureSortIndex++),
                         {convertPoint<float>(envelope.min), convertPoint<float>(envelope.max)});
         }
     }
-- 
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