From a792319795563fdcb14e03c6da18ee09fe8b6db9 Mon Sep 17 00:00:00 2001
From: benthecarman <benthecarman@live.com>
Date: Fri, 28 Oct 2022 22:06:15 -0500
Subject: [PATCH] wallet: skip rescan if address batch is empty

---
 wallet/rescan.go | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/wallet/rescan.go b/wallet/rescan.go
index 6ead082da8..50ff90b532 100644
--- a/wallet/rescan.go
+++ b/wallet/rescan.go
@@ -254,13 +254,17 @@ out:
 			log.Infof("Started rescan from block %v (height %d) for %d %s",
 				batch.bs.Hash, batch.bs.Height, numAddrs, noun)
 
-			err := chainClient.Rescan(&batch.bs.Hash, batch.addrs,
-				batch.outpoints)
-			if err != nil {
-				log.Errorf("Rescan for %d %s failed: %v", numAddrs,
-					noun, err)
+			if numAddrs > 0 {
+				err := chainClient.Rescan(&batch.bs.Hash, batch.addrs,
+					batch.outpoints)
+				if err != nil {
+					log.Errorf("Rescan for %d %s failed: %v", numAddrs,
+						noun, err)
+				}
+				batch.done(err)
+			} else {
+				batch.done(nil)
 			}
-			batch.done(err)
 		case <-quit:
 			break out
 		}