CRM-13969 - Fix error if no tags defined

diff --git a/CRM/Core/BAO/Tag.php b/CRM/Core/BAO/Tag.php
index fcf7ff7e21805e538a0e1bff81f0539adfc713c9..ddd639cb04750d2bca372ea874799fceea473c44 100644 (file)
--- a/CRM/Core/BAO/Tag.php
+++ b/CRM/Core/BAO/Tag.php
@@ -187,6 +187,9 @@ class CRM_Core_BAO_Tag extends CRM_Core_DAO_Tag {
     $parentId  = NULL,
     $separator = '  '
   ) {
+    if (!is_array($tags)) {
+      $tags = array();
+    }
     // We need to build a list of tags ordered by hierarchy and sorted by
     // name. The heirarchy will be communicated by an accumulation of
     // separators in front of the name to give it a visual offset.