Author: Petr Škoda
MDL-44366 improve glossary filter performance
This should have when there are no glossaries in course or
when there are no linked entries in existing glossaries.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=1e83288de76dc8d6ff472fe83a40743ec9ee22f7
http://github.com/moodle/moodle/commit/1e83288de76dc8d6ff472fe83a40743ec9ee22f7
+ 2.7 en [cachedef_concepts,mod_glossary]