PVS-Studio warning V519 for Geant4

void G4AdjointPhotoElectricModel::SampleSecondaries(....)
{
  ....
  pre_step_AdjointCS = totAdjointCS;
  post_step_AdjointCS =
    AdjointCrossSection(aCouple, electronEnergy,
                        IsScatProjToProjCase);
  post_step_AdjointCS = totAdjointCS;
  ....
}

This suspicious code was found in Geant4 project by PVS-Studio static code analyzer.
Warning message is:
V519 The 'post_step_AdjointCS' variable is assigned values twice successively. Perhaps this is a mistake. Check lines: 76, 77. g4adjointphotoelectricmodel.cc 77

PVS-Studio is a static analyzer for detecting bugs in the source code of applications written in C, C++, C++11, C++/CX. Site: http://www.viva64.com/en/pvs-studio/