if (call SentCache.lookup(qe->msg)) {
call CollectionDebug.logEvent(NET_C_FE_DUPLICATE_CACHE_AT_SEND);
call SendQueue.dequeue();
if (call SentCache.lookup(qe->msg)) {
call CollectionDebug.logEvent(NET_C_FE_DUPLICATE_CACHE_AT_SEND);
call SendQueue.dequeue();