PVS-Studio warning V501 for Curl

void Curl_cookie_clearsess(struct CookieInfo *cookies)
{
  ....
  if(!cookies->cookies || !cookies->cookies)
    return;
  ....
}

This suspicious code was found in Curl project by PVS-Studio static code analyzer.
Warning message is:
V501 There are identical sub-expressions to the left and to the right of the '||' operator: !cookies->cookies ||!cookies->cookies cookie.c 880

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