From 0b6d7dbbc91acbd300411c8b1a9837dbadb5be92 Mon Sep 17 00:00:00 2001
From: ThomasV <thomasv@electrum.org>
Date: Wed, 19 Jul 2017 06:46:37 +0200
Subject: [PATCH] fix swap

---
 lib/blockchain.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/blockchain.py b/lib/blockchain.py
index ba139a53..56462b3e 100644
--- a/lib/blockchain.py
+++ b/lib/blockchain.py
@@ -216,6 +216,9 @@ class Blockchain(util.PrintError):
             self.write_header(h)
         self.headers = []
         self.is_saved = True
+        # update pointers
+        blockchains[self.checkpoint] = self
+        blockchains[parent.checkpoint] = parent
 
     def save_header(self, header):
         N = 10