Fixes presence of empty tags for private tags and in search results

  * Private tags: make sure empty tags are properly filtered
  * Search results:
    * Use preg_split instead of function combination
    * Add normalize_spaces to remove extra whitespaces displaying empty tags search

1 files changed, 1 insertions, 1 deletions

diff --git a/application/LinkFilter.php b/application/LinkFilter.php
index daa6d9cc..57ebfd5c 100644
--- a/application/LinkFilter.php
+++ b/application/LinkFilter.php
@@ -348,7 +348,7 @@ class LinkFilter
         $tagsOut = $casesensitive ? $tags : mb_convert_case($tags, MB_CASE_LOWER, 'UTF-8');
         $tagsOut = str_replace(',', ' ', $tagsOut);
 
-        return array_values(array_filter(explode(' ', trim($tagsOut)), 'strlen'));
+        return preg_split('/\s+/', $tagsOut, -1, PREG_SPLIT_NO_EMPTY);
     }
 }