multi: pass reset to ForEachNodeCached

discovery/bootstrapper.go

@@ -247,9 +247,9 @@ func (c *ChannelGraphBootstrapper) SampleNodeAddrs(_ context.Context,
 				})
 			}
 
-			c.tried[nID] = struct{}{}
-
 			return errFound
+		}, func() {
+			a = nil
 		})
 		if err != nil && !errors.Is(err, errFound) {
 			return nil, err
@@ -282,6 +282,14 @@ func (c *ChannelGraphBootstrapper) SampleNodeAddrs(_ context.Context,
 			continue
 		}
 
+		for _, addr := range sampleAddrs {
+			nID := autopilot.NodeID(
+				addr.IdentityKey.SerializeCompressed(),
+			)
+
+			c.tried[nID] = struct{}{}
+		}
+
 		addrs = append(addrs, sampleAddrs...)
 	}