From cd79675f7acb61039e4bbcfbb9f7cd9c892dafdc Mon Sep 17 00:00:00 2001
From: phf <phf@atm-consulting.fr>
Date: Fri, 3 Jun 2016 21:16:25 +0200
Subject: [PATCH] Fix using extrafield type "link to object" show error on edit
 card

---
 htdocs/core/class/extrafields.class.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/htdocs/core/class/extrafields.class.php b/htdocs/core/class/extrafields.class.php
index 8d61733e138..283d189377c 100644
--- a/htdocs/core/class/extrafields.class.php
+++ b/htdocs/core/class/extrafields.class.php
@@ -1133,7 +1133,7 @@ class ExtraFields
 			if ($InfoFieldList[0] && class_exists($InfoFieldList[0]))
 			{
                 $object = new $InfoFieldList[0]($this->db);
-                $object->fetch($value);
+                if (!empty($value)) $object->fetch($value);
                 $valuetoshow=$object->ref;
                 if ($object->element == 'societe') $valuetoshow=$object->name;  // Special case for thirdparty because ref is id because name is not unique
                 $out.='<input type="text" class="flat" name="'.$keysuffix.'options_'.$key.$keyprefix.'"  size="20" value="'.$valuetoshow.'" >';