PVS-Studio warning V519 for tesseract-ocr

TESSLINE* ApproximateOutline(....) {
  EDGEPT *edgept;
  ....
  edgept = edgesteps_to_edgepts(c_outline, edgepts);
  fix2(edgepts, area);
  edgept = poly2 (edgepts, area);  // 2nd approximation.
  ....
}

This suspicious code was found in tesseract-ocr project by PVS-Studio static code analyzer.
Warning message is:
V519 The 'edgept' variable is assigned values twice successively. Perhaps this is a mistake. Check lines: 76, 78. libtesseract303 polyaprx.cpp 78

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/