Optimization in NarrowPhaseInfoBatch

src/collision/narrowphase/NarrowPhaseInfoBatch.cpp

@@ -76,7 +76,7 @@ void NarrowPhaseInfoBatch::clear() {
     // allocated in the next frame at a possibly different location in memory (remember that the
     // location of the allocated memory of a single frame allocator might change between two frames)
 
-    mCachedCapacity = narrowPhaseInfos.size();
+    mCachedCapacity = narrowPhaseInfos.capacity();
 
     narrowPhaseInfos.clear(true);
 }