From c5749e312ff437cf5b64aacee68d103bbd5ad30f Mon Sep 17 00:00:00 2001
From: moodler <moodler>
Date: Mon, 18 Dec 2006 01:58:59 +0000
Subject: [PATCH] Fixed a backwards logic bug preventing format changes
 sometimes  MDL-7961

---
 lib/blocklib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/blocklib.php b/lib/blocklib.php
index 29ec3ec6aad..19bb5499b3b 100644
--- a/lib/blocklib.php
+++ b/lib/blocklib.php
@@ -193,7 +193,7 @@ function blocks_delete_instance($instance,$pinned=false) {
 
     // Get the block object and call instance_delete() if possible
     if(!$record = blocks_get_record($instance->blockid)) {
-        if(!$obj = block_instance($record->name, $instance)) {
+        if($obj = block_instance($record->name, $instance)) {
             // Return value ignored
             $obj->instance_delete();
         }