Merge pull request #331 from majestrate/fix-convotag-issue

increment sequence number on good send only

llarp/service/endpoint.cpp

@@ -1620,13 +1620,13 @@ namespace llarp
         path = m_Endpoint->GetPathByRouter(remoteIntro.router);
       if(path)
       {
-        ++sequenceNo;
         routing::PathTransferMessage transfer(msg, remoteIntro.pathID);
         if(path->SendRoutingMessage(&transfer, m_Endpoint->Router()))
         {
           llarp::LogDebug("sent data to ", remoteIntro.pathID, " on ",
                           remoteIntro.router);
           lastGoodSend = m_Endpoint->Now();
+          ++sequenceNo;
         }
         else
           llarp::LogError("Failed to send frame on path");