From 2589076e3bea2e9535c089d7ff816de70daa5af5 Mon Sep 17 00:00:00 2001
From: Amir Sarabadani <ladsgroup@gmail.com>
Date: Tue, 16 Oct 2018 13:02:45 +0200
Subject: [PATCH] Avoid fatals when the filter tags is empty

Bug: T194164
Change-Id: I418cbe2259e7c1622a58a4a310a3cd56873f16c3
---
 includes/changetags/ChangeTags.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/includes/changetags/ChangeTags.php b/includes/changetags/ChangeTags.php
index 8dc63e506d..d9ca8d7b9a 100644
--- a/includes/changetags/ChangeTags.php
+++ b/includes/changetags/ChangeTags.php
@@ -836,7 +836,10 @@ class ChangeTags {
 						break;
 					};
 				}
-				$conds['ct_tag_id'] = $filterTagIds;
+
+				if ( $filterTagIds !== [] ) {
+					$conds['ct_tag_id'] = $filterTagIds;
+				}
 			} else {
 				$conds['ct_tag'] = $filter_tag;
 			}
-- 
2.20.1