PVS-Studio warning V598 for Coin3D

class COIN_DLL_API SoDetail {
  ....
  virtual ~SoDetail();
  virtual SoDetail * copy(void) const = 0;
  ....
}

class SoPointDetail : public SoDetail {
};

void
soshape_primdata::shapeVertex(const SoPrimitiveVertex * const v)
{
  ....
  SoPointDetail* newparray = new SoPointDetail[this->arraySize];
  memcpy(newparray, this->pointDetails,
    sizeof(SoPointDetail)* this->counter);
  ....
}

This suspicious code was found in Coin3D project by PVS-Studio static code analyzer.
Warning message is:
V598 The 'memcpy' function is used to copy the fields of 'SoPointDetail' class. Virtual method table will be damaged by this. soshape_primdata.cpp 202

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/