PVS-Studio warning V530 for UnrealEngine4

D3D11_STATE_CACHE_INLINE void GetBlendState(
  ID3D11BlendState** BlendState, float BlendFactor[4],
  uint32* SampleMask)
{
  ....
  FMemory::Memcmp(BlendFactor, CurrentBlendFactor,
                  sizeof(CurrentBlendFactor));
  ....
}

This is what should have been written here: FMemory::Memcpy

This suspicious code was found in UnrealEngine4 project by PVS-Studio static code analyzer.
Warning message is:
V530 The return value of function 'Memcmp' is required to be utilized. d3d11statecacheprivate.h 547

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/