ITS: additional deallocation before we copy

Author: f3sch

Detectors/ITSMFT/ITS/tracking/src/TrackerTraits.cxx

@@ -659,6 +659,9 @@ void TrackerTraits<nLayers>::findRoads(const int iteration)
         deepVectorClear(updatedCellId);   /// tame the memory peaks
         processNeighbours(iLayer, --level, lastCellSeed, lastCellId, updatedCellSeed, updatedCellId);
       }
+      deepVectorClear(lastCellId);   /// tame the memory peaks
+      deepVectorClear(lastCellSeed); /// tame the memory peaks
+
       std::copy_if(updatedCellSeed.begin(), updatedCellSeed.end(), std::back_inserter(trackSeeds), [&](const CellSeed& seed) {
         return seed.getQ2Pt() <= 1.e3 && seed.getChi2() <= mTrkParams[0].MaxChi2NDF * ((startLevel + 2) * 2 - 5);
       });