PVS-Studio warning V570 for OpenCV

void Core_DetTest::get_test_array_types_and_sizes(....)
{
  ....
  sizes[INPUT][0].width =
    sizes[INPUT][0].height = sizes[INPUT][0].height;
  ....
}

This suspicious code was found in OpenCV project by PVS-Studio static code analyzer.
Warning message is:
V570 The 'sizes[INPUT][0].height' variable is assigned to itself. test_math.cpp 1356

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/