fix marker for selector

chain/chain.go

@@ -104,7 +104,7 @@ func (c *Chain) Route(ctx context.Context, network, address string, opts ...chai
 			tr.Options().Route = rt
 			node = node.Copy()
 			node.Options().Transport = tr
-			rt = NewRoute()
+			rt = NewRoute(ChainRouteOption(c))
 		}
 
 		rt.addNode(node)

chain/route.go

@@ -129,10 +129,11 @@ func (r *route) connect(ctx context.Context, logger logger.Logger) (conn net.Con
 					metrics.Labels{"chain": name, "node": node.Name}); v != nil {
 					v.Inc()
 				}
-			} else {
-				if marker != nil {
-					marker.Reset()
-				}
+				return
+			}
+
+			if marker != nil {
+				marker.Reset()
 			}
 		}
 	}()