PVS-Studio warning V547 for StrongDC++

uint64_t QueueManager::FileQueue::getTotalQueueSize(){
  uint64_t totalsize = 0;
  ...
  if(totalsize < 0)
    totalsize = 0;
  ...
}

This suspicious code was found in StrongDC++ project by PVS-Studio static code analyzer.
Warning message is:
V547 Expression 'totalsize < 0' is always false. Unsigned type value is never < 0. client queuemanager.cpp 2230

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