Author: Rajesh Taneja
MDL-30421 forum: resolved error in single discussion forum, if more then one record is present
http://git.moodle.org/gw?p=moodle.git;a=commit;h=cfd9db2b8fbecc0f4c4a4d25f3ee8ff063f63b75
http://github.com/moodle/moodle/commit/cfd9db2b8fbecc0f4c4a4d25f3ee8ff063f63b75
+ 2.0 en [warnformorepost,mod_forum]