From f1d60221e9c9b90715acf23f646ddd8bad82dd07 Mon Sep 17 00:00:00 2001
From: Byron Jones <bjones@mozilla.com>
Date: Thu, 20 Jun 2013 00:33:57 +0800
Subject: Bug 884345: Searching on Due Date Is Empty does not work anymore

---
 Bugzilla/Search.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Bugzilla/Search.pm b/Bugzilla/Search.pm
index f19497454..46a3cb057 100644
--- a/Bugzilla/Search.pm
+++ b/Bugzilla/Search.pm
@@ -3104,6 +3104,7 @@ sub _empty_value {
     my $field_obj = $self->_chart_fields->{$field};
     return "0" if $field_obj->type == FIELD_TYPE_BUG_ID;
     return Bugzilla->dbh->quote(EMPTY_DATETIME) if $field_obj->type == FIELD_TYPE_DATETIME;
+    return Bugzilla->dbh->quote(EMPTY_DATE) if $field_obj->type == FIELD_TYPE_DATE;
     return "''";
 }
 
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