PVS-Studio warning V640 for Geant4

void
G4JpegCoder::ForwardDCT(int* picData)
{
  for( int v=0; v<8; v++ ){
    double cv = v ? 1.0 : DisSqrt2;
    for( int u=0; u<8; u++ ){
      double cu = u ? 1.0 : DisSqrt2;
      double sum = 0;

      for( int y=0; y<8; y++ )
        for( int x=0; x<8; x++ )
          sum += picData[ y * 8 + x ] *
                 mCosT[u][x] * mCosT[v][y];
          mDCTData[ v * 8 + u ] = int( sum * cu * cv / 4 );
        }
    }
}

This suspicious code was found in Geant4 project by PVS-Studio static code analyzer.
Warning message is:
V640 The code's operational logic does not correspond with its formatting. The statement is indented to the right, but it is always executed. It is possible that curly brackets are missing. g4rtjpegcoder.cc 270

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