From dac386735aab080ee23ef2d01be3cea19a2144e9 Mon Sep 17 00:00:00 2001
From: Miroslav Stampar <miroslav.stampar@gmail.com>
Date: Sun, 8 Jun 2014 12:34:12 +0200
Subject: [PATCH] Patch for an Issue #713

---
 tamper/unmagicquotes.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tamper/unmagicquotes.py b/tamper/unmagicquotes.py
index e79db0fc9..6d1cf1e7a 100644
--- a/tamper/unmagicquotes.py
+++ b/tamper/unmagicquotes.py
@@ -44,7 +44,9 @@ def tamper(payload, **kwargs):
                 continue
 
         if found:
-            retVal = re.sub("\s*(AND|OR)[\s(]+'[^']+'\s*(=|LIKE)\s*'.*", "", retVal)
-            retVal += "-- "
+            _ = re.sub("\s*(AND|OR)[\s(]+'[^']+'\s*(=|LIKE)\s*'.*", "", retVal)
+            if _ != retVal:
+                retVal = _
+                retVal += "-- "
 
     return retVal