From a63ac127bfc0ff6faceafebc8e5bc70b63a88db1 Mon Sep 17 00:00:00 2001
From: Marc Delisle <marc@infomarc.info>
Date: Fri, 15 Apr 2011 15:53:42 -0400
Subject: [PATCH] bug #3287596 BLOB emptied after editing another column

---
 libraries/tbl_replace_fields.inc.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/tbl_replace_fields.inc.php b/libraries/tbl_replace_fields.inc.php
index 84377bfdf..e1d98c895 100644
--- a/libraries/tbl_replace_fields.inc.php
+++ b/libraries/tbl_replace_fields.inc.php
@@ -68,7 +68,7 @@ if (false !== $possibly_uploaded_val) {
     }
 
     // $key contains the md5() of the fieldname
-    if (0 === strlen($val)) {
+    if (0 === strlen($val) && $type != 'protected') {
         // best way to avoid problems in strict mode (works also in non-strict mode)
         if (isset($me_auto_increment)  && isset($me_auto_increment[$key])) {
             $val = 'NULL';