From c0af4d18c2eecb7507423e5de6f000662e36d03e Mon Sep 17 00:00:00 2001
From: Henri-Damien LAURENT <henridamien.laurent@biblibre.com>
Date: Tue, 6 Apr 2010 13:27:20 +0200
Subject: [PATCH] BuildUnimarcHierarchies : Fixing infinite loop

When referenced authority in 5XX$3 would be the same as the current authid, the script would get into infinite loop
---
 C4/AuthoritiesMarc.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/C4/AuthoritiesMarc.pm b/C4/AuthoritiesMarc.pm
index 95e0655db1..7d9a2b4092 100644
--- a/C4/AuthoritiesMarc.pm
+++ b/C4/AuthoritiesMarc.pm
@@ -1060,6 +1060,7 @@ sub BuildUnimarcHierarchies{
     foreach my $field ($record->field('5..')){
       if ($field->subfield('5') && $field->subfield('5') eq 'g'){
 		my $subfauthid=_get_authid_subfield($field);
+        next if ($subfauthid eq $authid);
         my $parentrecord = GetAuthority($subfauthid);
         my $localresult=$hierarchies;
         my $trees;
-- 
2.20.1