From 48eb7bc9de80e5a1dd648b39adde51a73e2687d7 Mon Sep 17 00:00:00 2001
From: dongsheng <dongsheng>
Date: Wed, 15 Oct 2008 05:30:37 +0000
Subject: [PATCH] "User Filter: empty filter form fixed, merged from 1.9,
 MDL-16880"

---
 user/filters/lib.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/user/filters/lib.php b/user/filters/lib.php
index d22d2a9ff0..7adb207f7c 100644
--- a/user/filters/lib.php
+++ b/user/filters/lib.php
@@ -78,6 +78,9 @@ class user_filtering {
                         }
                         unset($SESSION->user_filtering[$fname][$i]);
                     }
+                    if (empty($SESSION->user_filtering[$fname])) {
+                        unset($SESSION->user_filtering[$fname]);
+                    } 
                 }
             }
             // clear+reload the form
-- 
2.39.5