From d726050bc4d136f3e5e57883022b34f78c7ea96d Mon Sep 17 00:00:00 2001
From: Miroslav Stampar <miroslav.stampar@gmail.com>
Date: Fri, 5 Dec 2014 11:46:03 +0100
Subject: [PATCH] Patch for an Issue #991

---
 lib/utils/hashdb.py | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/lib/utils/hashdb.py b/lib/utils/hashdb.py
index 9c42cf884..d0e57c3df 100644
--- a/lib/utils/hashdb.py
+++ b/lib/utils/hashdb.py
@@ -139,8 +139,15 @@ class HashDB(object):
     def beginTransaction(self):
         threadData = getCurrentThreadData()
         if not threadData.inTransaction:
-            self.cursor.execute("BEGIN TRANSACTION")
-            threadData.inTransaction = True
+            try:
+                self.cursor.execute("BEGIN TRANSACTION")
+            except:
+                # Reference: http://stackoverflow.com/a/25245731
+                self.cursor.close()
+                threadData.hashDBCursor = None
+                self.cursor.execute("BEGIN TRANSACTION")
+            finally:
+                threadData.inTransaction = True
 
     def endTransaction(self):
         threadData = getCurrentThreadData()