From fd62a86aa1c07f7894b988b037809fbf15cf6ff0 Mon Sep 17 00:00:00 2001
From: Moul <moul@moul.re>
Date: Mon, 10 Oct 2016 12:17:14 +0200
Subject: [PATCH] [fix] #442: condition to check if block exist failed: - block
 root '0' was making the ckech fail. - Check variable if it's none.

---
 src/sakia/core/net/network.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sakia/core/net/network.py b/src/sakia/core/net/network.py
index eec21ff4..6fa6608e 100644
--- a/src/sakia/core/net/network.py
+++ b/src/sakia/core/net/network.py
@@ -288,7 +288,7 @@ class Network(QObject):
         :return: the number of confirmations of a data
         :rtype: int
         """
-        if block_number:
+        if block_number is not None:
             if block_number > self.current_blockUID.number:
                 raise ValueError("Could not compute confirmations : data block number is after current block")
             return self.current_blockUID.number - block_number + 1
-- 
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