fClone
bool IsClone() const { return fClone; }
bool fClone;
out.Print("net buffer dup: buffer: %p -> %p", fBuffer, fClone);
net_buffer* fClone;
fClone(clone),
"-> %p", fBuffer, fShareFreeSpace ? "true" : "false", fClone);
net_buffer* fClone;