From d4f964ef8e6de11372eb2aeae961ca3226fc6e13 Mon Sep 17 00:00:00 2001
From: Lex Berezhny <lex@damoti.com>
Date: Tue, 9 Oct 2018 23:57:41 -0400
Subject: [PATCH] short circuit adding annotations when get_transaction does
 not return anything

---
 torba/basedatabase.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/torba/basedatabase.py b/torba/basedatabase.py
index 03b353f40..cdbfe08ce 100644
--- a/torba/basedatabase.py
+++ b/torba/basedatabase.py
@@ -335,6 +335,9 @@ class BaseDatabase(SQLiteMixin):
             **constraints
         )
 
+        if not tx_rows:
+            return []
+
         txids, txs = [], []
         for row in tx_rows:
             txids.append(row[0])