fixes #1169 as described on ticket

git-svn-id: http://code.elgg.org/elgg/trunk@3683 36083f99-b078-4883-b0ff-0f9b5a30f544

1 files changed, 4 insertions, 0 deletions

diff --git a/engine/lib/tags.php b/engine/lib/tags.php
index 3c65c2a7a..77db25348 100644
--- a/engine/lib/tags.php
+++ b/engine/lib/tags.php
@@ -92,6 +92,10 @@ function get_tags($threshold = 1, $limit = 10, $metadata_name = "", $entity_type
 
 	if (!empty($metadata_name)) {
 		$metadata_name = (int) get_metastring_id($metadata_name);
+		// test if any metadata with that name
+		if (!$metadata_name) {
+			return false; // no matches so short circuit
+		}
 	} else {
 		$metadata_name = 0;
 	}