From 8472584d38b244bdd59258de7db26fd323cc966d Mon Sep 17 00:00:00 2001
From: vfilippov <vfilippov@6955db30-a419-402b-8a0d-67ecbb4d7f56>
Date: Thu, 18 Nov 2010 14:44:05 +0000
Subject: [PATCH] Bug 72149

git-svn-id: svn://svn.office.custis.ru/3rdparty/bugzilla.org/trunk@1086 6955db30-a419-402b-8a0d-67ecbb4d7f56
---
 Bugzilla/Bug.pm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Bugzilla/Bug.pm b/Bugzilla/Bug.pm
index 77164ee48..f8593c76e 100644
--- a/Bugzilla/Bug.pm
+++ b/Bugzilla/Bug.pm
@@ -1862,6 +1862,8 @@ sub _check_select_field {
 sub _check_bugid_field {
     my ($invocant, $value, $field) = @_;
     return undef if !$value;
+    # If there is no change, do not check the bug id, as it may be invisible for current user
+    return $invocant->{$field} if ref $invocant && $invocant->{$field} eq $value;
     return $invocant->check($value, $field)->id;
 }