[core] Fix performance-inefficient-vector-operation errors

As reported by clang-tidy-8.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/mbgl/renderer/render_orchestrator.cpp b/src/mbgl/renderer/render_orchestrator.cpp
index b6b16814f0..8acadd04b9 100644
--- a/src/mbgl/renderer/render_orchestrator.cpp
+++ b/src/mbgl/renderer/render_orchestrator.cpp
@@ -501,6 +501,7 @@ void RenderOrchestrator::queryRenderedSymbols(std::unordered_map<std::string, st
     const Placement& placement = *placementController.getPlacement();
     auto renderedSymbols = placement.getCollisionIndex().queryRenderedSymbols(geometry);
     std::vector<std::reference_wrapper<const RetainedQueryData>> bucketQueryData;
+    bucketQueryData.reserve(renderedSymbols.size());
     for (const auto& entry : renderedSymbols) {
         bucketQueryData.emplace_back(placement.getQueryData(entry.first));
     }