PVS-Studio warning V501 for Boost

point3D operator/(const point3D &p1, const point3D &p2)
{
  return point3D(p1.x/p2.x, p1.y/p2.y, p1.z/p1.z);
}

This suspicious code was found in Boost project by PVS-Studio static code analyzer.
Warning message is:
V501 There are identical sub-expressions to the left and to the right of the '/' operator: p1.z / p1.z lorenz_point.cpp 61

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