From 28cadf8a2adcc43581b09a2e972fd6729d2f065e Mon Sep 17 00:00:00 2001
From: Thomas Faraut <Thomas.Faraut@inra.fr>
Date: Mon, 16 Dec 2019 19:17:32 +0100
Subject: [PATCH] tool support

---
 svreader/annotation.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/svreader/annotation.py b/svreader/annotation.py
index 11c2b98..6d2363e 100644
--- a/svreader/annotation.py
+++ b/svreader/annotation.py
@@ -616,7 +616,7 @@ def SetSupportingTools(SVSet):
                 tools.add(get_tool_name(dupli))
         if 'TOOLSUPPORT' in sv.record.info:
             supporting = set(sv.record.info['TOOLSUPPORT'])
-            tools.union(supporting)
+            tools = tools.union(supporting)
         sv.record.info['TOOLSUPPORT'] = list(tools)
 
 
-- 
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