From 68d43b73d24f51839efd3d3d97323507e11ff3ea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexander=20Nicolaysen=20S=C3=B8rnes?=
 <alex@thehandofagony.com>
Date: Thu, 30 Jul 2009 16:58:53 +0200
Subject: [PATCH] bug: Prevent duplicates when moving bug links

---
 include/bugs.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/bugs.php b/include/bugs.php
index 9c38fa8..45a3887 100644
--- a/include/bugs.php
+++ b/include/bugs.php
@@ -181,6 +181,11 @@ class Bug
     {
         $oBug = new bug($this->iLinkId);
 
+        // There is no need to have two links to a bug.  The update is still
+        // considered successful
+        if($this->isDuplicate())
+            return $this->delete();
+
         if($this->iVersionId && $this->iVersionId != $oBug->iVersionId)
         {
             $hResult = query_parameters("UPDATE buglinks SET versionId = '?'