Author: Andrew Hancox
MDL-46929 mod_forum: Fix for edge cases when searching
http://git.moodle.org/gw?p=moodle.git;a=commit;h=e9c46768b5731174e928f3ff7d4b7bb99e8d04a7
http://github.com/moodle/moodle/commit/e9c46768b5731174e928f3ff7d4b7bb99e8d04a7
+ 3.3 en [toomanytags,core]