swap path on inbound convo if expires soon

llarp/service/endpoint.cpp

@@ -1160,10 +1160,16 @@ namespace llarp
               continue;
             // get path for intro
             ForEachPath([&](path::Path_ptr path) {
-              if(!path->IsReady())
+              if(path->intro == replyPath)
+              {
+                p = path;
                 return;
-              if(path->Endpoint() == replyPath.router)
+              }
+              if(p && p->ExpiresSoon(now) && path->IsReady()
+                 && path->intro.router == replyPath.router)
+              {
                 p = path;
+              }
             });
             if(p)
             {

llarp/service/outbound_context.cpp

@@ -98,6 +98,7 @@ namespace llarp
           LogInfo("introset is old, dropping");
           return true;
         }
+
         auto now = Now();
         if(i->IsExpired(now))
         {
@@ -105,7 +106,6 @@ namespace llarp
           return true;
         }
         currentIntroSet = *i;
-
         if(!ShiftIntroduction())
         {
           LogWarn("failed to pick new intro during introset update");