URI: 

       tsanity check read_header - electrum - Electrum Bitcoin wallet
  HTML git clone https://git.parazyd.org/electrum
   DIR Log
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       ---
   DIR commit 882e259a78024d63b576d6ff3a8d50a576327072
   DIR parent 4c2deb6d2bfe4680a2cc9596f15d10823665f58a
  HTML Author: ThomasV <thomasv@electrum.org>
       Date:   Tue,  1 Aug 2017 11:00:12 +0200
       
       sanity check read_header
       
       Diffstat:
         M lib/blockchain.py                   |       2 ++
       
       1 file changed, 2 insertions(+), 0 deletions(-)
       ---
   DIR diff --git a/lib/blockchain.py b/lib/blockchain.py
       t@@ -242,6 +242,8 @@ class Blockchain(util.PrintError):
        
            def read_header(self, height):
                assert self.parent_id != self.checkpoint
       +        if height < 0:
       +            return
                if height < self.checkpoint:
                    return self.parent().read_header(height)
                if height > self.height():