PVS-Studio warning V561 for UnrealEngine4

void FStreamableManager::AsyncLoadCallback(
  FStringAssetReference Request)
{
  ....
  FStreamable* Existing = StreamableItems.FindRef(TargetName);
  ....
  if (!Existing)
  {
    // hmm, maybe it was redirected by a consolidate
    TargetName = ResolveRedirects(TargetName);
    FStreamable* Existing = StreamableItems.FindRef(TargetName);
  }
  if (Existing && Existing->bAsyncLoadRequestOutstanding)
  ....
}

This is what should have been written here: Existing = StreamableItems.FindRef(TargetName);

This suspicious code was found in UnrealEngine4 project by PVS-Studio static code analyzer.
Warning message is:
V561 It's probably better to assign value to 'Existing' variable than to declare it anew. Previous declaration: streamablemanager.cpp, line 325. streamablemanager.cpp 332

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