Create a new database. Add a date field named "date" and description "date". Add a new entry with random date and assign a tag named TAGNAME. Add the tag block to the course. Click on the tag you added on step3 (TAGNAME). URL should be something like: /tag/index.php?tc=1&tag=TAGNAME Check the entry you've added on step 3 is shown. Check the entry title is a well formatted date. Enter the database again. Click on the Search tab and check no PHP warning is shown. Test search filtering problem On the same course add a new glossary. Add a new entry with title "a" and random description. Check or enable filter Glossary auto-linking. Enter the database again and navigate to the "Search" tab. Check all search fields are displayed correctly. (Before the patch it displays something like the following lines with letters "a" linked to the glossary, which is incorrect) Tags: ##tags## Author first name: ##firstname## Author surname: ##lastname##